Top Definition
1. it is like a dinosaur but like a little bit crazey TO TEH MAX!!1. so youre all like "the fabled WTFASAURUS??!/."

2. an exclamation or shock or suprise.
- i thought dinosaurs were all dead.
- all accept the WTFASAURUS!.
- OGM HAX!

WTFASAURUS! (that racoon just PWNED me??!/) lmaobyobabybbq

paint loller!
lollerskates
lolls royce
lollercoaster
steamloller
loller hockey
by Team Jack November 27, 2005
what the fuck, or what the hell
WTFasaurus are you doing?
by maddie.jerri May 28, 2008
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