fam
n. uncountable C1 Advanced fam
n. a very close friend or a group of friends that you treat like your own family. You use this when you want to show someone they are part of your inner circle.
n. a term of endearment or solidarity referring to a close friend or a collective social circle. Highly informal and common in urban dialects; functions as a vocative or a collective noun.
I'm heading out to the movies with the fam.
Don't worry about the bill, fam; I've got you covered this time.
The artist dedicated his award to his 'day-one fam', acknowledging the tight-knit community that supported his career before he achieved mainstream success.
Usage
Often used as a vocative to address a single person ('What's up, fam?') or as a collective noun for a group.