CTD Unit
A measurement of time in units of the length of "Mmm mmm mmm mmm" by The Crash Test Dummies. One CTD Unit is specifically 3 min and 53 seconds.
"I counted 6 hundred and 32.5 CTD Units to drive without sleep from Los Angles to New York City."
"Weird, because I counted, 5 hundred and 50. You must have hit some really bad traffic."

"Hey Chris, How many CTD Units did you sleep last night?"

"I slept a healthy 120 CTD Units."

Hey Lincoln, I noticed you were listening to "Help" by the Beatles, have you stopped counting CTD Units."

"No Larry, I always have CTD Units counting in my head!"