Top definition
A guibass is a cross between a guitar and a bass. A guibass is made by taking an old shit-ass classical guitar and prying out the tuners with a screwdriver and replacing them with bass tuners. 4 bass strings are then added. This instrument makes virtually no noise.
My friend Mike made a guibass out of his old classical guitar. I slapped him and called him an asshole.
by Mr. Crowley April 27, 2008
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