There's no official club of that name, it's just an expression, meaning sex aboard an aircraft in flight. It happens on nearly all flights, mostly with the hottest air hostesses.
There was a really hot air hostess on my flight here. The others around us appeared to be asleep, or at least lost in their thoughts, so she pulled down her nickers, wrapped my blanket around her hips, climbed on my lap, and together we joined the mile high club.
by peridos June 21, 2010

While flying to New Orleans on a pterodactyl's wings I screwed a random lady, while in action a boy yelled, "mommy why is your butt in my face." His mom replied,"Billy give me a second, I'm joining the mile high club."
by Cedric James January 17, 2008

The mile-high club is an exclusive club for guys who have jacked off and had a cumgasm in the restroom of an airplane flying at least one mile high.
by USAF Cadet January 12, 2021

by tbonetyrant February 21, 2011

technically having sex while above ground level (usually an airplane). use to be an elite club but more and more are wanting to join the parade now.
--a movie base on the life of flight attendants.
--a movie base on the life of flight attendants.
by coach johnson October 15, 2008

Technically you don't have to be in an airplane to achieve this. Just go into the bathroom at a Denver Broncos home game and sex it up.
by Zach-punishergetdown December 29, 2007

To have intercourse while piloting an aircraft. The altitude must 5,280 feet MSL not AGL. In other words, one cannot park on Denver Airport property, bang each other, and earn their wings to the Mile High Club.
by Boombala November 25, 2006
