Any vile or disgusting substance. Named after the actual definition which is the fluids that come out of a recently dead woman usually a nice cocktail of embalming fluid and leftover bodily fluids. Elderly women over 60 are preferred for this but beggars can't be choosers.
To get it you must go to a cemetery with very liberal security and a buddy you trust enough to commit breaking and entering with. You will also need said buddy to help you dig up the grave. Once you've hit pay dirt and found the corpse you put your lips around the vagina of the dead woman and have your buddy jump off a tombstone and onto the corpse's stomach and wait for the mung to splash up into your mouth.
Ewww Jessica just stepped in mung while wearing flip-flops.
A great alternative for when you can't smoke. Camel Snus is the best. Such a sin only a fistful of stores on the east coast sell it. You can also save the little tin for stuff like loose change. While the tin says the flavor lasts up to 30 minutes I have chewed some for up to 3 hours.
An excuse used by parents for failing to discipline their kid and as a result creating an obnoxious, hyperactive, spoiled brat in severe need of a boot in the ass. Also a bullshit diagnosis given by child psychiatrists to prescribe pills for the kid because more than likely they're getting a kickback from the pharmaceuticals company.
Soccermom: My little Timmy has ADD.
DennisIsEvil: No he doesn't, he just needs a good boot in the ass.