Top definition
to look up information on someone you don't know through Facebook or Twitter. Sometimes referred to as "Facebook Stalking"
Sue: "What does his new girlfriend look like?"
Rita: "I don't know, let me check up on her."
by missb41183 February 25, 2012
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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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3
the act of deep throating a girl to see how far your cock goes down her asophogus
damn man this girl was real great man i gave her a check up and she's 100 % okay to go.
by Berry and Danny June 18, 2006
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4
To excecute or perform an act of incredible destructive force, or disrespect to ones persona.
“Damn! I spilt my drink on the floor.”

“You better clean that shit before I Check Up! you!”
by Juju Been February 01, 2010
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