1. A term used to describe vaginal intercourse. Usually used by people by British descent.
Person 1: Eh Johnny, guess what I did last night
Person 2: What did you do?
Person 1: I did a little of the old in and out.
by Mike Cookster April 26, 2006
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1. Copulation. Best said by Alex, of A Clockwork Orange.
1. "No time for the old in-out in-out, love. Just came to check the meter."
by Ramblin' Rose September 5, 2006
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The act in which a group of old female friends go out without their old fart husbands. Old gals' night out usually begins slow with dinner and drinks at a restaurant. The evening picks up when the old gals get soused and end up closing down the local nightclub.
The ladies had an Old gals' night out and went to see the male strippers.
by DW007 September 14, 2012
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The act in which a group of older women friends go out without their old fart husbands. Old gals' night out usually begins slow with dinner and drinks at a restaurant. The evening picks up when the old gals get soused and end up closing down the local nightclub.
The ladies had an Old gals' night out and went to see the male strippers.
by DW007 September 14, 2012
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Term used by young Alex in Stanley Kubric's 1970's film "A Clockwork Orange" for engaging in the act of sexual intercourse or rape.
- We were getting ready to perform a little The Old In-out on some young girl when she grabbed a knife and cut off my scrotum.
by Cballzandhoney April 11, 2008
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Someone who stays out for multiple nights without going home or showering.

Started in south NJ in the mid 2000's.
Girl: "Ew did you see Ali, she is def a dirty old stay out who hasn't washed her hair."
by Jabs13 December 17, 2010
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a homewrecking slut who breaks up relationships that were otherwise stable
Person 1 "Did you hear? Joey and Jenna broke up because he cheated on her."

Person 2 "Oh my, what kind of 19 year old take out girl would sleep with him?"
by Swiss 1934 August 18, 2008
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