An acronym for Whiny Ass Pussy. It can be added to the end of a name to designate that person as being a WAP, or of having a generally wappy attitude. Essentially it as an extreme form of bitching. It can be modified to reflect almost any part of the English language (noun, verb, adjective, etc.)
(LAP-WAP punches D-WAP in the stomach.)
D-WAP:Oh I'm done, I'm done, I can barely breathe. My stomach hurts so bad.