The opposite of the mile high club, where the requirement for membership is to have sex below the surface of the earth. Also applies to submarines.
Guy #1: I heard he went spelunking with his girlfriend last week. Apparently he joined the Mile Low Club.

Guy #2: Aww yeah I'd explore her cave alllllll night long.
--------------------------------------------------------------------
Nazi Soldier #1: U-Boat 96 just got back. I heard the captain joined the MLC while they were at sea, chicka chicka yeah chicka chicka.

Nazi Soldier #2: Nasty dude, that was an all-male expedition!
by arrivez à l'helico February 12, 2010
Get the Mile Low Club mug.
A much less glamorous version of the mile high club. If you've ever jerked off on a plane then then you're in the mile low club.
Trent: Yo did you just crank one out in the airplane toilet?

Albert: Yeah (hangs head in shame)

That's low dude. You're in the mile low club now.
by JohnnyRico77 February 22, 2009
Get the mile low club mug.
basicly the opposite of the mile high club your just in a submarine instead of an airplane
"hey man guess what i did!" "What?" "became a member of the mile low club!" "no way!"
by zciwonadz October 15, 2008
Get the mile low club mug.
When in an airplane while grounded, 2 individuals have sex in the bathroom on the plane. The male ejaculates into the female while grounded, when the plane becomes airborne the semen continues to climb into the vagina cavity of his partner.
Steve wanted to become a member of the mile high club but could not contain himself with the young flight attendant. They had sex in the bathroom on a delay in Denver. Once the plane took off and her stomach felt awkward Stephani realized she was a member of the mile low club.
by Nipple Knockers May 14, 2022
Get the Mile Low Club mug.