MDI

Mysterious Drunken Injury

When you wake up with a scab or a bruise or a laceration and you can't remember how you got it.

Billy: Check out this MDI on my face
Johnny: No man, you got that from running into a fence.

by MDI July 23, 2007

MDI

Multiple Dicks In-ass

"Ben, your such a virgin"

Ben: "false, I had MDI last night"

by MDIMDI August 6, 2020

MDI

When someone mans down on such a regular basis and so badly they contract the disease MDI (short for Man Downitis). This has been known to be terminal.

Fucking 'ell spaaaaarcy chicken you have got well bad MDI

by the greenest mile December 31, 2007

mdi

mount desert island, maine, home of acadia national park and bar harbor. the best place in the world. approximately ten million times better than ellsworth.

"hey, dude, you're really awesome! are you from mdi?"
"totally, man."
"i wish i could go to mdi instead of the crappyass school i'm going to now..."

by e-nizzle March 2, 2004

Mdi

The 'cool' shortened nickname for anyone called Madi, Maddie or Maddi.

Maddie/Madi/Maddi
Mdi

by lol hello!!!!! madelineeeee October 20, 2008