1. bg - Noun
2. bg - Verb
Abbreviation of background.
(online gaming slang) Initialism of bad game.
Antonym: gg
(Internet slang) Abbreviation of big grin; often enclosed in * * or < > to indicate that the user is grinning widely.
Coordinate terms: g (“grin”), vbg (“very big grin”)
(stenoscript) Abbreviation of begin and inflections beginning, began, begun.
BG (countable and uncountable, plural BGs)
(slang, pornography) Initialism of boy/girl.