gnarly adj 1: used of old persons or old trees; covered with knobs or knots; "gnarled and knotted hands"; "a knobbed stick" [syn: {gnarled}, {gnarly}, {knotted}, {knotty}, {knobbed}]
Gnarly \Gnarl"y\, a. Full of knots; knotty; twisted; crossgrained. [1913 Webster]
gnarly /nar'lee/, adj. Both {obscure} and {hairy} (sense 1). "{Yow!} -- the tuned assembler implementation of BitBlt is really gnarly!" From a similar but less specific usage in surfer slang.
gnarly <jargon> /nar'lee/ Both obscure and {hairy}. "{Yow}! - the tuned {assembler} implementation of {BitBlt} is really gnarly!" From a similar but less specific usage in surfer slang. [{Jargon File}] (1996-09-17)