user4928: I have heard that there is a Tibetan word that roughly translates to "The truth that we deny" and sounded close to the English word "gotcha."
I however cannot locate this word or a source of it. Can anyone provide a source?
It is possible that it translates to either "The truth that I deny" or "The truth that you deny."
I am not sure if "we" was the right pronoun. 
I think it might have been used in debates within the monasteries. 

user6994: Pron.: gakja
Wil.: dgag bya
Unicode: དགག་བྱ།
Usually translated by Jeffrey Hopkins as 'object of negation'. Although the object of negation is twofold: (1) the objective aspect (true existence) and (2) the subjective aspect (ignorance), 'object of negation' usually refers to true existence.

It is explained at length in the 'Special Insight' chapter of the Lam Rim:

Third volume of Tsongkhapa's the Lam Rim Chen Mo
5th chapter of Tsongkhapa's Middle-Length Lam Rim

It is also explained at length in the following:

Tsongkhapa's Final Exposition of Wisdom
Khedrup Je's A dose of Emptiness

The object of negation is a 'truth to be denied' or a 'concealer truth'. It is true existence, or inherent existence according to Prasangika-Madhyamika.
Since true existence appears as if existing but is actually utterly non-existent, why do we call it a truth? What is the meaning of 'truth' in 'truth for a concealer'? It is called a [concealer] truth because although it is not a truth (since it doesn't exist the way it appears) it is true in relation to ignorance.

This is explained in the Explanation of Candrakīrti’s Commentary on
the ‘Middle Way’ as well:

That which appears truly existent and inherently
  separate due to a concealer while not existing inherently is true for
  a worldly, mistaken concealer.

Strictly speaking, a truth is an object that exists the way it appears (its mode of existence is concordant with its mode of existence). Example: emptiness is an [ultimate] truth, and is an actual truth, because it exists the way it appears to the mind directly realizing it. However, a conventional truth is a truth only in relation to ignorance. A concealer truth is also a truth only in relation to ignorance: it is not an actual truth.

user376: The word, as spelled in english, is "gak-cha," and it refers to the object whose existence we deny.  
The idea is that things, including our selves, do not exist "out there, independently," or "from their own side."  Such a thing, according to Mahayana buddhism, could never exist.  When we catch our mind falling prey to relating to some thing (including our "self") as if it really existed independently from our perceiving mind, then we have located the "gak-cha."
There's a transcription of a talk by Lama Yeshe that goes into some depth:
Lama Yeshe Archive

4928: <p>I have heard that there is a Tibetan word that roughly translates to "The truth that we deny" and sounded close to the English word "gotcha."</p>

<p>I however cannot locate this word or a source of it. Can anyone provide a source?</p>

<p>It is possible that it translates to either "The truth that I deny" or "The truth that you deny."
I am not sure if "we" was the right pronoun. 
I think it might have been used in debates within the monasteries. </p>
 6994: <p>Pron.: gakja
<br>Wil.: dgag bya
<br>Unicode: དགག་བྱ།</p>

<p><br>Usually translated by Jeffrey Hopkins as 'object of negation'. Although the object of negation is twofold: (1) the objective aspect (<em>true existence</em>) and (2) the subjective aspect (ignorance), 'object of negation' usually refers to <em>true existence</em>.</p>

<p><br>
It is explained at length in the 'Special Insight' chapter of the Lam Rim:</p>

<ul>
<li>Third volume of Tsongkhapa's the Lam Rim Chen Mo</li>
<li>5th chapter of Tsongkhapa's Middle-Length Lam Rim</li>
</ul>

<p>It is also explained at length in the following:</p>

<ul>
<li>Tsongkhapa's Final Exposition of Wisdom</li>
<li>Khedrup Je's A dose of Emptiness</li>
</ul>

<p><br>The object of negation is a 'truth to be denied' or a 'concealer truth'. It is <em>true existence</em>, or <em>inherent existence</em> according to Prasangika-Madhyamika.</p>

<p>Since true existence appears as if existing but is actually utterly non-existent, why do we call it a truth? What is the meaning of 'truth' in 'truth for a concealer'? It is called a [concealer] truth because although it is not a truth (since it doesn't exist the way it appears) it is <strong>true in relation to ignorance</strong>.
<br>
This is explained in the Explanation of Candrakīrti’s <em>Commentary on
the ‘Middle Way’</em> as well:</p>

<blockquote>
  <p>That which appears truly existent and inherently
  separate due to a concealer while not existing inherently is true for
  a worldly, mistaken concealer.</p>
</blockquote>

<p>Strictly speaking, a truth is <em>an object that exists the way it appears</em> (its mode of existence is concordant with its mode of existence). Example: emptiness is an [ultimate] truth, and is an actual truth, because it exists the way it appears to the mind directly realizing it. However, a conventional truth is a truth only in relation to ignorance. A concealer truth is also a truth only in relation to ignorance: it is not an actual truth.</p>
 376: <p>The word, as spelled in english, is "gak-cha," and it refers to the object whose existence we deny.  </p>

<p>The idea is that things, including our selves, do not exist "out there, independently," or "from their own side."  Such a thing, according to Mahayana buddhism, could never exist.  When we catch our mind falling prey to relating to some thing (including our "self") as if it really existed independently from our perceiving mind, then we have located the "gak-cha."</p>

<p>There's a transcription of a talk by Lama Yeshe that goes into some depth:
<a href="http://www.lamayeshe.com/article/chapter/identifying-gak-cha">Lama Yeshe Archive</a></p>
