A slang term by Jamaicans in recognition of homosexual acts , people and symbols.
“I am going to the rainbow club,” I am not going too much Battism gwans there.
The uncontrollable urge to beat someone with a baseball bat at random
Guy 1: Hey dude, I think I have Battism
Guy 2: How so?
Guy 1: I just randomly beat up my friend yesterday with a baseball bat.