gnar /nɑː(ɹ)/adjective 1noun 1verb 1forms 5 adjective1 •(slang) Gnarly. noun1 •(slang) Snow or an ocean wave.You wanted to surf instead, to be like those locals who lived simply, had enough money for rent, food, and board wax; who waited tables at night and woke up to shred the gnar. — 2020 verb1 •To snarl or growl. formsgnarred · gnarring · gnars · more gnar · most gnar