In the plumbing field a nipple is a predetermined short length of pipe usually NPT(National Pipe Thread). A NPT threaded nipple can be made of almost any material and can be in sizes ranging from 1/16" to 24" NPS(Nominal Pipe Size). The plumbing nipple gets it's nickname because of it's similar function to that of a female nipple in humans and animals. It's usually a small protrusion which emanates fluid or gas.
by JoePlumber April 13, 2010
Get the Nipplemug. 
The process of siping or 'nursing' a drink
What are you doing over there? Stop nippling that drink and get it down.
Are you a nursing major? Stop nippling that beer and grab another
Are you a nursing major? Stop nippling that beer and grab another
by NumberOne111 May 26, 2015
Get the Nipplingmug. The thing that can hurt and help.ex.
HURT: 1)If you are and a girl and you get punched there it hurts like hell. 2) If your a girl and you dont like guys you still get to see guys stare at you there.3) If yours are small then guys probly wont date you.
HELP: 1)They can help you get guys if yours are big. if your a girl then thats the only way they help.
HURT: 1)If you are and a girl and you get punched there it hurts like hell. 2) If your a girl and you dont like guys you still get to see guys stare at you there.3) If yours are small then guys probly wont date you.
HELP: 1)They can help you get guys if yours are big. if your a girl then thats the only way they help.
by Kassandra@KJ102.7 March 4, 2011
Get the nipplemug. When a woman's nipples are extremely visible through their clothing thus indicating they are wearing a cheap bra or no bra
by brawearer October 9, 2008
Get the Nippleingmug. The worlds greatest friend to all. On everyone. Played with a lot. Sometimes abused. But nipples is the awesomest friend in the universe!
by Batmansweg June 8, 2014
Get the nipplesmug. can be inverted, of many shapes and sizes,colors and textures, soft or wrinkley (if over the age of 60), usually attached to a mouth. can be compared to a loonie, with a raisin sitting on top. can be tweaked, rubbed, even pulled. (or pushed)
the nipples of her(his) salami titties pressed against a window p.s purple areolas with one lone hair
by cpt.n.tweak November 9, 2006
Get the nipplesmug.