adj. Incredibly sick and twisted. Disgustingly mind-bending. Used outside of extreme sports to describe a bass-line or grouping of psychedelic sounds as heard in drum n' bass, dubstep, and many other genres of electronic music, hip-hop, and rock. Can also refer to visual art that is ground-breaking or brain-shattering, especially in the realm of graffiti and tagging.
Junglist: "Holy shit did you hear that bass-line? How the hell did they do that?! Shit is fucking gnar gnar!"
Head: "Have you seen that burner on 200 south? It's gnar gnar as fuck!"
Head: "Have you seen that burner on 200 south? It's gnar gnar as fuck!"
by Jon Hunstman IV June 29, 2011
 Get the gnar gnarmug.
Get the gnar gnarmug. A word used to describe something that is favorable or cool. Can be used as an adjective or just as a means of ending a conversation. An alternative to word or any other saying of that nature.
Did you see Louie Barletta's part in Bag of Suck? I think it was pretty gnar gnar.
I dunno man, that ledge looks pretty gnar gnar.
Person 1: Ok man Ill call you later about hitting the park.
Person 2: Gnar gnar.
I dunno man, that ledge looks pretty gnar gnar.
Person 1: Ok man Ill call you later about hitting the park.
Person 2: Gnar gnar.
by Valhallaskates January 21, 2010
 Get the Gnar Gnarmug.
Get the Gnar Gnarmug. by tpubs October 30, 2011
 Get the gnar gnarmug.
Get the gnar gnarmug. by hoipang  August 22, 2017
 Get the Gnar Gnarmug.
Get the Gnar Gnarmug. Gaffney's Numerical Assessment of Radness
by el capitan de gnar May 30, 2011
 Get the GNARmug.
Get the GNARmug. A shortened version of the word gnarly, meaning high on the scale of dangerousness and coolness.  Often used among the skateboard crowd
by Brooks Edwards February 16, 2004
 Get the gnarmug.
Get the gnarmug. Jahlil: Did you see that ostrich on the slopes over yonder?
Jimmy: Yeah, he was shredding mad amounts of gnar.
Jimmy: Yeah, he was shredding mad amounts of gnar.
by Apickle June 14, 2015
 Get the gnarmug.
Get the gnarmug.