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When a semi retarded kid finds his 7 year old friend on the floor crying and wants to know what went on. A fast upbeat What Happened.
Matt: *cries*
Mike: WAPPEN!?
by Love Gun79 November 02, 2005
The combination of the words 'what' and 'happened'.
Could also be used as "What's happening?"
What + happened = Wappen
by Photik June 01, 2006
Conjunction of 'what' and 'happens.'
Wappens if...
by mattheeternalsexgod February 02, 2010
wats happenin
wappen star
by Nathan September 22, 2003