short for "nippleslip". When a female nipple or at least the areola is showing, its called a nipslip.
by Kaipo December 05, 2006
when you're wearing a shirt with out a bra and your nip slips out and you can see it and the public is like "WTF, YOUR NIP IS OUT!"
by hrtagm April 15, 2011
by aimeesexylips September 20, 2020