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The penis of a Time Lord. Most commonly used to refer to the interdimensional and time traveling peen of the Doctor or the Master. Some can argue that Capt. Jack has a tiemcock, but this is wrong, he has a tiemagentcock.
Jack Harkness wants the tiemcock something fierce.

It's long been rumoured that the Doctor wants some serious tiemcock from the Master.
by Raevyn Lovel October 27, 2007
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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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