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 9, 2013
Get the kbffmug.