look up any word, like the eiffel tower:
Meaning "I'm not kidding." An equivalent of "I shit you not."

Said by the character Glen (played by actor Sam McMurray) in the Coen Brothers' movie "Raising Arizon"
Person 1: Did you hear that Brad and Jen broke up?
Person 2: No way!
Person 1: I'm crapping you negative.
by FelixPen May 26, 2006