1) Punk Rock-dancing in the "mosh
pit" - bumping / running into other fans in front of the stage in a counter-clockwise, circular, semi-rhythmic fashion.
2) To hypodermically inject illicit
drugs such as heroin,
cocaine, methamphetamine, etc.
3) Punch someone very hard.
1) Dude, you can't slam to Pearl
Jam!
2) Dude, I don't slam that shit, I'
ll snort mine...
3) Dude, I
slammed that asshole!