Top Definition
A failed attempt in a particularly spectacular fashion, specifically pertaining to sports or video games.
"Did you see that Grug? It missed his bat completely"

"Oh dude, you Grugged that level. Perhaps Tetris is more your style."
by GrolschMan February 02, 2010
Someone who urgently requires a haircut.

Grug was a childrens book character crated by Ted Prior in a series of books popular in Australia throughout the late 80s and early 90s.

Grug has thus become a popular nickname Australian people in particular, including but not limited to those with the name Greg.

True grugs, however, resemble the book character in that their face or body is covered completely by hair.

Thus one who is in dire need of a haircut is a Grug. (or Cousin Itt.)
"Get a haircut, Ringo, you look like Grug."
by juan schwartz June 16, 2004
Grugs is a word often used to describe a street version of the term Heroin or other renown drugs such as maragana. Maragana is a hardcore drug it is often described as a gateway droog.
Yo man i was hittin up them grugs and i got hella faded
by C00nSl4yer June 25, 2014
A kickass Australian fellow.
"Do you get any sci-fi channels down there in Australialand, grug?"
by Alhazad December 08, 2003
Tight Ganstas who roll high and and pimp the hoes

ex. "Jordan and Austin are such Grugs"
by Austin Larkin May 25, 2006
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