Used to describe something cool. Popular in mainstream slang and can be used for almost any scenario. It is also @blockaye_ 's favourite thing to comment under IG memes.
Nigga 1: Wys fam check my new whip. issa i8 ting
Nigga 2: Damn nigga das tuff.
A jam is usually another way of saying "party" primarily used by teenagers.
Yoooo bro are you trying to reach a jam tonight at my base?
Ahh say less as long as theres sweet girls
Dont stress bro I gotchu