v. The act of having sex in or around Denver, Colorado, USA, a city which is approximately 5280 feet (1 mile; 1.6km) above sea level, and is known as the "Mile-High City". Bonus points if the sex involved an actual dance club in Denver.

n. mile-high club
The group of people who have had sex as defined above.

I can't believe I lost my virginity through mile-high clubbing the other night!
by RehabbedMacAddict February 11, 2009
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having sex in an in-flight airplane, technically while at least a mile above the ground
by Anonymous May 19, 2003
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Where people attempt to have sex in the lavatory of an airplane whilst mid-flight
A flight attendant saw Stacy and Craig doing a Mile High Club
by TheDeadInside May 3, 2023
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Having sexual intercourse of any type inside and airplane. Usually considered to take place in the lavatory.
Follow me into the bathroom big boy and we'll join the mile high club. http://www.themilehighspy.com/content.html
by The Mile High Spy August 22, 2008
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Indulging in any form of sexual intercourse in an in-flight Airplane restroom, while, obviously, being at least a mile off the ground.
"I hope the flight attendant didn't see us come in here...she might know we're becoming members of the Mile High Club."
by Delusional Confusion January 15, 2005
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Having sex with another person in an airplane.
I had consensual missionary sex with my wife in an airplane and we joined the mile-high club. Then I banged the stewardess and got a gold membership.
by Duke January 28, 2003
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Preforming any sexual thing while being in an airplane during flight, usually in the bathroom.
When I go to Florida in the spring with Mike, we are going to become members of the "Mile High Club".
by SaM* September 20, 2005
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