Top Definition
when you get a boner in the morning, and you dont know why, its just standing tall and strong!
by tittyT December 01, 2002
A boner that occurs when someone wakes up in the morning usually because the body is automatically holding in urine.
Ugghh, dude. i needed to take a piss but i had a serious morning boner and had to bend over!
by Alex \m/ January 31, 2007

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