(Internet slang) Initialism of be back soon.

(telecommunications, Internet) Initialism of bulletin board system or bulletin board service. / (education) Abbreviation of Bachelor of Business Studies. / (computing) Initialism of BIOS boot sequence.

plural of BB

Alternative letter-case form of BBS (be back soon).

plural of bb

(electronics) Initialism of baseband. / Initialism of BlackBerry. / Initialism of basketball. / Initialism of baseball. / (computing) Initialism of bulletin board.

Initialism of Big Brother. / Initialism of Big Bang. / Initialism of Bangka-Belitung.

bye bye

bareback; without a condom

Initialism of best before.