A fork of Rural Dictionary
Wanking on a plane, usually in the plane lavatory. Like the Mile High Club but far easier to attain and much more shameful.
Example 1
Guy1:Johnny's been in the bathroom awhile, I bet you he's joining the Mile High Club.
Guy 2: Pfft maybe as a half member!
Johnny: Guess who's now a Mile High Club Half Member!
Guy 1: Called it!
Example 2
Drunk guy:Never have I ever joined the Mile High Club!
*Johnny guy drinks*
Johnny:I'm a Mile High Club half member!
Drunk guy: Ew man gross!
Johnny:Hey dude, it was a long flight and I was bored.