Pretending to be your identical twin (if you have one) to have sex with his or her significant other.
I pulled the Old Switch-er-oo last night on your girlfriend, I didn't realize it was her first time, I tapped that sh*t. Hope you like seconds.
by Jizzle Rizzle January 21, 2003
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1. The act of two couples switching partners in the midst of simultaneous sexual congress.

2. Successfully dumping your girlfriend in favour of her sister or roommate.
1. Jane and I were givin er when Jack offered Jill up and we did the old switch-er-oo.

2. Person 1: Yep, as soon as Susan moved in with Sarah, I knew I had to have her, so I gave Sarah the heave-ho and now Susan and I are bumping ugly.

Person 2: Holy shit! You pulled off the old switch-er-oo!
by dsfgjdsfgjsdgfds November 10, 2007
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Person 1: "Hey Bro, I forgot my cell division from biology class. Could you explain it to me?"
Person 2: "o 0 8 oo"
Person 1: "Thanks."
by doginbucket December 2, 2021
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1. A phrase uttered in a Wendy's commercial pertaining to Spicy Chicken.
2. Also, a phrase said by someone who has released methane and sulfur dioxide
*Guy farts* Oo wee, that is nice and spicy.
by John Doe December 2, 2003
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Wodehousian slang for ok, cool, etc
I thought everything was oo jah cum spiff between you and Biffie.
by Lionél Dripps April 15, 2004
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a phrase which someone says when he or she is very excited.
"oo lala hussay hussay!" says bob while looking at playboy magazine.
by linkin_sum_182 June 23, 2003
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Japonese torture technique known as "Ranlofan". The testicles are removed from a criminals scrotum, and the eyes are removed from his head. The testicles are then placed in the eye sockets, and the eyes are sewn into his scrotum-- all while he is awake.
"In punishment for molesting midgets, I condemn you to the old switch-er-oo!"
"NO! ANYTHING BUT THAT! PLEASE!"
by Anonymous January 21, 2003
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