Top Definition
A booger (dried nasal mucus) that gets hard and sharp enough to stab or cut the inside of your nostril. It can result in pain and sometimes a nosebleed.
"Dude your nose is bleeding, what's wrong with you?"

"The low humidity today gave me a really bad knife booger and it cut me when I was trying to pick it out."
von SR20DEN 24. Dezember 2009
Täglicher Gratisnewsletter

Gib unten deine Mailadresse ein um jeden Morgen gratis dein "Urban Wort des Tages" zu bekommen!

Die Mails werden von daily@urbandictionary.com versendet. Wir versenden keine Spammails.

×