Top Definition
The art of wireless cracking.
I used my wi-fu to crack my neighbors WEP key
by dr_0ct4g0n October 22, 2008
1 more definition
4 Words related to wi-fu
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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