When you are horny and want to have sex but your vagina "slams shut". Your sexual partner can't fit anything maybe a finger in there.
Referring to lockjaw, of when you use alot of cocaine and your jaw will slam shut without you doing so.

A man who messes around with other men, but no one would ever know by looking or talking to him. Used by gay black men to identify masculine gay men or DL Brothas.