Top Definition
kinky best friends forever; someone you meet in the BDSM community and become fast friends with; not to be confused with a love/lust interest (although nothing should ever be entirely ruled out . . . .)
"I met someone at that dungeon party last night, and it feels like we've known each other forever! She's my new KBFF!"
by SweetPirate September 09, 2013

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