An expression reminiscent of the Golden Age of the Jurassic Era, when ferocious lizards roamed the land. Thus use of the expression refers to anything that is big and bad, or totally bad-ass. Use of the word furthers the quest to win Alex $5 out of Zach's pocket for spreading a word.
T-rex t-rex! T-rex is a hungry mother fucker!
by DicksForChicks January 15, 2009