1 definition by John8

Top Definition
When playing an instrument such as a guitar, and your band plays a song where you will have a killer solo, but the band stops playing right before your solo. You are left helpless with musical blue balls.
Jack's garage band was playing One by Metallica and stopped playing the song right before Jack's big guitar solo; Jack had anticipated his solo so much that when he did not get to play it, he got musical blue balls, or MBB.
by John8 November 02, 2007

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