When you have a whole bunch of zits on your butt, so it looks like a nipple butt. The zits are so big they look like nipples.
by Shadow Buzz December 23, 2016

by foppymcfopfop December 28, 2010

Butt Nipple is whn you have an abnormally large mole on your ass. Or Just a funny name to call your friends.
Hey Ted, Have you seen Fred's big butt nipple?? It's so huge he can't even sit on his left cheek. Lolz
by SquattingBuffalo69 May 13, 2011

by IronPrime9 April 01, 2017

The term used for a very large, painful, and uncomfortable pimple located on your gluteus maximus, or more widely named, your butt.
Guy 1: "Hey man, you down for a couple drinks at the pub tonight?"
Guy 2: "Sorry man, I can't. I got a huge butt nipple my wife's supposed to take care of for me."
Guy 1: "Ah man, I understand. Butt nipples are a bitch."
Guy 2: "Sorry man, I can't. I got a huge butt nipple my wife's supposed to take care of for me."
Guy 1: "Ah man, I understand. Butt nipples are a bitch."
by WhatsUpFuttBuckers June 01, 2020

"ew, look! that girl has butt nipples!", "oh my god my butt nipple hurts.", "my butt nipples are hard because it's cold.", "i'm getting my butt nipple peirced!"
by heroinplus February 24, 2009

by Johnny"Da Pimp"Erwin April 17, 2003
