Top Definition
That mustache that boys get at like 8th or 9th grade that's part peach fuzz, part darkish hairs that looks totally ridiculous, but they insist on not shaving it because it makes them feel studlier, and they want to get their grown-man on.
"Uhhh, look at Woody over there. He looks so stupid with his wannastache. It looks like a baby caterpillar."
by goober. February 07, 2008
5 Words related to wannastache

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