Top Definition
1) Get high(drug use) while listening to the music, mostly at the nightclubs and parties.
2) To have a great time(connected to music).
I was totally bassed up in that nightclub!

Wanna come with us? We are goin to bass up there!
by Alex ramp December 04, 2008
1 more definition
4 Words related to Bass up
Getting loud with somebody in a discussion.
Don't you be bassing-up to me you turkey-assed motherfucker.
by B Dominguez December 22, 2003

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