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1.
An article, which according to Ron White is used to purchase alcohol at a large gathering such as a fair.
"You got your coupin"
"No. Where do you get them?"
"See that line over there?"
by ZBT Sean July 03, 2008
 
2.
When someone forms the shape of a person lieing sideways or downwards in a sexual manner.
'Coupin?' 'Yes, now'

'I like Coupin' 'Yes, its almost as good as leggin or gropin'
by Ness Whats Occurin March 07, 2010
 
3.
Driving fast in a sports car
coupin' with my boo at one fitty
by john a February 18, 2005