An abbreviation of the welsh word "jaman", this is an exclamation used when a person says something with a degree of certainty, which is immediately contradicted by the words or actions of either the same or some other person, or some other event.
Friend 1: I did not sleep with that ugly girl!
Ugly Girl: I had a great time last night, call me!
Friend 2: Jam for you!
Flatmate 1: I know there are no tickets left for that comedian next march!
Flatmate 2: Well I just bought 2 tickets for the the late show online, so jam for you!
2 or more musicians making music together but not an official band.
Guitarist Dude: Hey man i heard you got a drumset, we should jam sometime.
Noob Drummer: Sounds good, i havent gotten to play to music yet.
A fruity preserve that usually goes on toast or in sandwiches
I like Jam on my toast
1)Means:To relax, or chill out.
person 1: damm im vexed
im goin to smack him
person 2: jam man.
To get together with people to play music.
Guitarist: Hey, you wanna get together and jam this weekend.
Drummer: Let's do it.
dope or opiate derived drugs.i.e. oxycontin. heroin
i was straight noddin of them jams on the bus.
A party, hopefully with lots of free beer.
Cam: Eh man, you coming to that jam in the park tonight?
a song that a person is particularly fond of, sometimes to the point of being their personal anthem or theme song. derived from the expression "jamming out".
"say mang, turn the radio up, this is my jam!"