look up any word, like donkey punch:
 
1.
ifb
intense flirting buddy
I just love flirting with my ifb all the time.
by yourifb;) July 29, 2011
 
2.
IFB
stands for Interference-Free Band, a range of radio frequencies used for cuing devices where many other radio signals could interfere with clear communication
George Bush needs an IFB to communicate, especially where he might need to answer intelligent questions. Without his IFB, he'd be cueless.
by Jamesness January 15, 2007