Top definition
1. I follow back
2. I'll follow back
-often used on instagram or any other website that requires people to follow you.
Hey, follow me and ifb
by minniemouse💜💜 August 06, 2015
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3
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
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