Top Definition
Nipples that are so severely hard or pronounced that they would be capable of cutting glass.
Fuck, it's freezing out there. I've got glass cutters.
作者 aspirin 2004年6月14日
3 more definitions
When you can see the bulge of a man's package through his underwear resembling a standard glass cutting tool.
See George St. Pierre, G.S.P.

"Hey, did you see G.S.P's glass cutter when he pounded Thiago Alves?"
作者 Brown Nation BN 2009年7月11日
when your nipples are hard from it being too cold.
"It's freezing in here, now people will see my glasscutters."
作者 GhostWriter2 2005年6月07日
Hard Nipples
"Damn those bitches nipples are glass cutters"
作者 joy1989 2010年1月26日



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