1 definition by MarkoftheRings

Top Definition
Acronym meaning "Win at all cost(s)". Can be used to describe almost anything seen as hyper-competitive.
*Professional tennis player serves full speed against 10 year old*
You: That guy has such a WAAC attitude
#win #wacc #losing #asshole #jerk #competitive
Por MarkoftheRings 17 de julio de 2012
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