gnarly
Pronunciation:
\när-lē\
Function: adjective
Inflected Form(s): gnarl·i·er; gnarl·i·est
Date: 1773
1) gnarled 2) slang a: difficult, hairy (skidded around gnarly hairpin turns — Austin Murphy) b: bad, nasty (has some pretty gnarly karma coming — Drew Barrymore) c: cool, good
As in "My nails are so gnarly I need a mani/pedi ASAP!" as quoted by Lola Granola :)
Taken from Merriam-Webster Online Dictionary