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A natural disaster caused by an extreme excess of smegma concealed in one's own foreskin. Usually caused by not cleaning your foreskin on the regular or from dietary problems resulting in a sudden growth of smegma.
Bill: Hey man are you going to the game tomorrow?
Fred: Nah man my family and I are getting out of town before the Smegmageddon gets here.
Bill: OH SH*T I GOTTA GET OUTTA HERE!
Fred: Yeah dude, it's pretty tragic.
by Grandpa Bob June 28, 2016
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Jun 24 Word of the Day
An exclamation made when your friends or family are teasing you to a point where you can't handle it anymore and a hissy fit is in order.

Derived from a YouTube user's famed outburst following Britney's lackluster performance at the 2007 VMA's.
Sarah: 'OMG Susan, I can't believe you are wearing the same skirt as yesterday. Oh, and by the way, EVERYONE knows what you did with Kevin on the weekend. Plus you look a little fat, are you retaining water?'

Susan: 'LEAVE BRITNEY ALONE!'
by Billy Chickenhole September 15, 2007
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