A "jamain" is a total loser. All he wants is sex but he's so ugly no-one will give it to him. They usually have very bad body oder too. A "jamain" can be male or female and they will bone anything that moves
Who is that guy talking to Alison
Oh that's Daniel.
Why is he talking to her? She's fat and ugly.
No-one else will have sex with him except that slut.
Duddeee! He's a total jamain