(Adj.) (NAR-lee-cor) Having such a highly intense concentration of awesome that its almost sickening or such a highly intense concentration of disgusting that it's almost awesome. Also: Gnar-ly; Gnar-tas-tic; Gnar Gnar; Gnar-ly-kins; Gnar-ville. (Additionally: Gnarlytitty, Tittycore)
"Dude i can't take it, that car is gnarlycore!"
"Ugh, i just took a gnarlycore shit in there..."
the act of doing something so gnarly it isn't even gnar anymore its the hybrid lesbian sister of both hardcore and gnarly. also "GNARCORE" means nothing if there is a hyphen between "GNAR" and "CORE" and if its not spelled with all capitols or yelled!
dude 1: anthony's toe-nail surgery was so gnar.
dude 2: no way man, that ish was GNARCORE
dude 1: ...thats as good as the english language will ever get!