When one pulls their pants up to have the waistband even with one's nipples. This is a particularly unattractive method of pants-wearing and common in old people, and idiots. Nipple pants are also usually accompanied by moose knuckles, due to the high tension of the pants.
"Check out that old dude's nipple pants."

by Fake Pete November 25, 2006
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an arrogant prick who wears short shorts up to his nipples, sweat pants tucked into socks, rubbs his crusty toes together, and dates nasty white trash broads. listens to soft rock in his PT Loser and scopes out the sexies downtown.
Synonyms: Creep, Asshole

Antonyms: Dad
Me: "Guess who still has the creepy match.com profile"

You: "Nipple Pants Man !!!!!!!!!!!"
by JacquelineVanessa October 17, 2008
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