1 definition by SEXYCHIPMUNK

A mushroom head is the head of your penis. It is the cap like part of a penis and usually is the thickest part of a penis. Mushroom heads are similar in looks to a mushroom so that's why we call the head a mushroom head.
Lorenzo: I heard you got a blowjob from Chris
Samer: No he was just biting my mushroom head
by SEXYCHIPMUNK June 2, 2016
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