foenem could mean anything. It can be a gun, a person or even your gang. This is also used as an expression like when people say on my momma. You can say on foenem but the point is the other person dont know who your swearing on. You could even be talking bout them but the word foenem hides who your speaking on. This is a Chiraq term.
"Foenem" refers to ones close friends or family also could be referred to as someone's team or squad. at times can also be used as a way to swear a promise.
Short for four and them. Used to refer to members of the Four Corner Hustlers, a Chicago gang. Foenem can also be used more loosely to refer to allies of the Four Corner Hustlers in the People Nation i.e. Gangster Disciples , Vice Lords ect.