term for a type of snowboarding jib that slants upward to a flat part and then slants downward again. exellent for showing off your skills.
"Dude, I totally nailed my backside 540 on that up flat down box."
by boardsport7 January 26, 2008
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Crazy mad sex on a merry go round with a fat black chick.
We went to the county fair and my girlfriend wanted to participate in a up and down, in and out.
by jello132 March 10, 2015
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Used when sayin somethings on point, cool, rad, legit etc. usually when talkin about a bands performance
"Yeah you guys we're right on, straight up and down"
by straightupanddown October 14, 2009
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Wanna Fuck?, Let's have sex.

Another term for fucking. If you want a guy to know that you want to fuck him, say this phrase and he'll understand you. Either that or lick your lips...

Oh, and if your guy doesn't understand this little phrase, he's on crack and he's lost his marbles!!! But...try to explain it to him.
Girl: "Hey baby."

Guy: "Hey, what do you want to do today?"

Girl: "I wanna go up and down the slide. Can we?"

Guy: "Sure, let's go!"
by Soulja_Girl November 26, 2007
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A word for Masturbation. Based on the word "the old in-out in-out" from the 1971 movie A Clockwork Orange.
I just had the old up-and-down tonight, damn i'm sore!
by Thy Sainth March 12, 2020
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