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A superlative that is meant to express the highest form of something, to be so excessively "verb" that your penis is actually, or has the potential of, metaphorically falling off. Not meant to actually mean that your penis is detached from one's body. Can be used by both male and female parties.
Thought to be another form of "my ass off" as in "laughing my ass off."
Example 1:
John: "Ey, I haven't slept for three days, I'm sleepy"
Robert: "I haven't slept for five days, I'm really sleepy!"
Patrick: "I haven't slept for a month, I'm sleepy my dick off!"

Example 2:
Michael: "Dude, could you pick me up a free water?"
David: "Why don't you pick one up yourself at the concession stand?"
Michael: "Because I'm thirsty my dick off, but I'm also 'not wanting to pay 5 dollars for a water' my dick off"

Example 3:
Paul: "Damn, check out that girl over there, she's so fine"
Richard: "Hell yeah, she's sexy my dick off"
by TheSnowman1 October 12, 2010
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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?'

by Billy Chickenhole September 15, 2007
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