A pirate-
ass way of saying something is insanely cool, dangerous, impressive, or gloriously unhinged. Usually shouted after witnessing something so wild it makes a pirate want to chug rum and
fire a
cannon into the sky.
Combination of "Yarr" and "Gnarly"
"Cap'n did a backflip off the mast into a shark-infested whirlpool. That be fuckin' yarrly."
"Them waves be yarrly as hell today, matey."
"Ye replaced the
ship's steering wheel with a giant crab? Absolute yarrly behavior."
"The kraken ripped the
ship in half while Jim kept playin' the accordion
like nothin' was wrong. That be the most yarrly thing I ever seen."