Top Definition
A large uni-brow of Himalayan proportions. A brow so thick and full that it creates a uni-mullet when both sides meet.

A mythical parasitic creature that controls the head of its prey. While the host is sleeping, the Wonderbrow will peels off and get into mischief only to return to the host who is unaware of the tomfoolery that has occurred.
I was unable to concentrate because his Wonderbrow was staring at me.

His Wonderbrow soaked up all the beer from the ashtray.
by Nimbus the Great July 26, 2005

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