when your nipples largen and harden from sexual arousement
when mark licked Sarah's hard nipples they became even harder and harder.
by Zulfa December 4, 2018
A nipple erection of the female body in while the nipple muscle gets hard due to being simulated by incredibily cold weather or sex.
While Sami was unconscious, Sami's dog gave Sami a hard nipple. Sami, thinking it's the girl of his dreams, enjoyed it.
by whats a hard nipple? June 8, 2009
When dudes get hard, their dick gets hard. When girls get hard, their nipples become hard.
Oh, daddy, you made so hard, hard nipples.. Damn..
by damarisguhi March 9, 2018
When you grow a pimple like bump inside your nipple or your nipple just becomes hard.
I've come down with a case of Hard Nipple-Tightis
by Matt January 24, 2004
when your nipple is pointy and you rub it on circles.
avery: damn you have a hard nipple

sophia: that made me have a hard nipple
by Zenón June 11, 2020
Making girls/guys horny.. Otherwises another word for HORNAY. (: (Or just seeing seans nudes) SHH! (:
Jake: Man that girl got so nipple-harded last night!
Ryan: NO WAI.
by Pikachu eater November 18, 2009
My girlfriend gave me a great blow job,
It was so great I had a nipple hard on
My girl friend gave me a blowjob that was so good I got nipple a ( nipple hard on )
by Thenry January 3, 2017