Gumming food with no teeth.

Yeeting a dead body's intestines
Eating a dead body

Munging is where you go out with your mates to a grave yard to find a dead human being.
Step.1 Dig up the body
Step.2 Put your mouth over the Vagina or penis

Step.3 get your mate to jump on the dead person

And if these steps are done correctly all the insides of maggots and flouids should come out in to your mouth.

Hey guys lets go munging

Gurning. When a person's jaw uncontrollably swings, usually due to drugs (such as MDMA) and/or pleasure.

When you have taken a lot of bud and then relax and ride the rollercoaster of being high as shit

To be cumming or ejaculating

Don’t know