Define Man Jacket Meaning

Flak Jacket Man
The guy in your group of friends that takes the grenade.

"who takes the grenade this time?"

"Kevin hes the flak jacket man."
By Bernie
Man Jacket
A rancid layer of fat and body hair, providing warmth to men in cold climates. Also a bitch of a curse for any man wearing one above 55°F.

Chris Farley's Man Jacket mad him sweat like a steamed pig on SNL.
By Gloriana