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2.
Eating lots of food mad fast!!!
"Im bout to start wapping on this sandwhich real quick!
by thasyckness January 17, 2008
 
1.
Masturbating with your left hand if you're a righty, or vice versa.

Usually occurs when someone has broken their preferred arm, they are forced to wap instead of fap.
My mom caught me wapping the other night, it was awkward because she was used to me fapping my right hand.
by midnight wapper December 06, 2010
 
3.
Releasing your penis from its trousers and smacking it down hard on an inanimate object to give a slapping sound (Sometimes referred to as Cocklashing)
We were down the bar and Mike dropped his trousers and wapped it out for all to see
by kymcleod October 17, 2003