Top Definition
The art of wireless cracking.
I used my wi-fu to crack my neighbors WEP key
by dr_0ct4g0n October 22, 2008
Acronym for "What's In It For Us". It is the antonym for WIFM.
Instead of asking WIFM, why don't we try asking WIFU?
by associationgrrrl July 28, 2011
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