Internet Slang. A list of common slang words, acronyms and abbreviations as used in websites, ICQ chat rooms, blogs, SMS, and internet forums. The definition of BBBJ is "Bare Back Blow Job (no condom)" BAREBACK, Unprotected Sex. Blow Job, oral sex. 4. B.J sex · Short term for Blowjob-which is the sucking of a man's penis · Yo, wanna give me abbreviation of blow job or blowjob. Occurs. 7 Nov FOV = finger outside vagina French = BJ, or oral sex in general French ( different variants of the definition but the basic definition includes: FS.