Top Definition
Dumbass, fuckwit. Stupid cunt.

You call someone this when they do something stupid, or when they FAIL.
Dude, can I use your phone to text my mum?' 'Sure bro! Just don't drop it in that puddle...' *Drops phone in puddle* 'AHH YOU TWAPPER!
by Jax the max January 29, 2011
Smells like twapper.
by Skenn May 07, 2002
One who twapps. Twapp- to relax index finger so that a flick of the arm and wrist will cause the index finger to whip forward.
He had a red mark on his arm from being twapped by his friend.
by Paul February 16, 2004

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