A misspelling that teens commonly use when trying to sound edgy but are not ballsy enough to use "nigger". Common in American schools, Discord chats, and the few people that still use Kik as of 2017.
*Excerpt from a Discord chat, spelling corrected*
Person A- I don't like fat chicks.
Person B- Black people love em thick.
A- I'm not even black lol.
B- You act like a nibber.
an acronym for NIGGER or NAGGER. Someone or something that is such a pain in the ass that is in existence. At times, you just want to bitch slap or kill them!
A way to drop the hard r without getting your ass kicked
Black person: white cracker
White person: dirty nibber
Black person: WHAT DA FUCK DID U SAY TO ME NIGGA
White person: woah, calm down I said niBBer
Black person: Ohhhh, ok we cool