Simply the word "Bastard" shortened to the first syllable. Believed to have originated in Great Britain.
Mother: "That lazy bas won't do the dishes"
(Son hears): "I thought a bass was a fishy"
Father: *Chuckles*
(Son hears): "I thought a bass was a fishy"
Father: *Chuckles*
by xxx Old Gregg xxx June 6, 2010

Britney Spears is such a ba.
by got_hops62 January 11, 2008

Girl:I thought we was going to have sex
Boy:You got your period, you must be drinkin that ba-ba juice if you think I'm having sex with you.
Boy:You got your period, you must be drinkin that ba-ba juice if you think I'm having sex with you.
by Lady Grimey May 17, 2006

by Plush Terry August 5, 2004

by 1337guy June 8, 2003
