The act of just relaxing and chilling out, sometimes (though not necessarily) whilst or after having partaken in the smoking of Cannabis.

Monging usually takes place around the house however could occur in any comfortable exterior location of choice, e.g. sauna, field, hottub, etc.

Origin presumed to be from mong as in the act that such a person performs.
I'm gonna go mong for a bit.

He's just been monging about all day.

She just mongs all day, never does any work.

by CS84 June 11, 2007
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Three people, two guys, one dead female. One guy has sex with the dead body till he cums cum orgasm once he has cummed, he climbs a ladder and the other guy puts his mouth so it is covering her vagina vagina cunnilingus eating out the first guy then jumps on the corpse's stomach causing the cum to go into the second guys' mouth.
Those guys are sick, they monged that girl who died in the train wreck!
by Ned March 23, 2004
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(verb) the act of hanging out in a group at someone's house and taking large quantities of MDMA.
dude... you guys were monging on my lounge last night.
by superm0nkey May 06, 2007
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Monged - the result of several hours of steady smoking, characterised by inability to move from the sofa.
I was monged out last night after that weed
by cup December 12, 2003
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1. (Mong)- Slang for spastic, but used against a person who says or does something completely idiotic by accident or without realisation. This makes every witness simultaneously raise their hands to their shoulders and shake 'em while sticking their tongue in their lower lip and making 'urrgh' noises.

2. (Monged)- A vegetive state of mind/being usually effective after consuming large quantities of alcohol, weed, lsd, ecstacy etc or combinations of.
1. Steve you mong, you've just poured the kettle onto ya cornflakes.

2. Steve's well monged after we spiked his drink with acid, muhahahaha.
by Safecracker G October 15, 2004
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British Army terminology for putting in a bad performance / being defeatist / not putting in the effort.
Recruit: I can't go on...

Corporal: Stop monging it and get a move on!
by JBF July 05, 2005
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