There are many slang terms you can use to address or refer to a friend or associate.
The list below shows the terms on Slanguide that fall into this category, as well as their meanings:
BFF – Best Friends Forever.
Boo – A term of affection.
Bruh – Brother.
Bub – Brother or friend.
Fam – A close friend or a group of close friends.
G – Gangster, meaning friend or associate.
Homie – A close friend.
M8 – Mate.
Mate – Friend.
Woe – A friend or associate.