1) A form of greeting when bumping into either a friend or stranger.

2) A stupid noise one makes when out drinking with friends... Whooooooap's in unison are far more funny and effective than single Whooooooaping. Just keep an eye out for the Whooooooap police.
Friend 1; 'ello mate, ain't seen you in ages.'

Friend 2; Whooooooap!!!!!!!!!!!!
by Daniel Oates June 6, 2007
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