Top Definition
An insult depicting the recipient as a cross between a Boon and a Bass (more commonly known as Sea-Bass, Bassey, Sea Bassey). Alternatives to the word 'boonbassa' include Goon, Goonie and SeaGoon.
wa u lkin at?! boonbassa, dnt b starin,ima blaps u. yea u!! gt a spare faggot mate?
by J.Bassey December 05, 2004
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