Questimation
One who replies to his or her own question with a
questionable estimation.
Tyrone: Hey Jaquantay, how much do they pay at Popeye's....?

(waiting less than 1 second for response)

Tyrone: ..... Nevermind, I think they pay $25 an hour.

Jaquantay: You crazy! You gotsta stop wit 'yo questimations.