marked by skill in deception, full of deceit and guile
"wily cyote"; "cunning men often pass for wise"; "deep political machinations"; "a foxy scheme"; "a slick evasive answer"; "sly as a fox"; "tricky Dik"; "a wily old attorney"
by kelsea ericksen July 25, 2006
Someone thats liable to wild out at any given moment. Wild and gnarly at the same time. Can also be used for something thats badass or just sick.
My boy Darryl will crack jokes on anybody on the streets. He don't give a fuck if they're black, spanish, white, old, or in kindergarten. That dude is a wily mofo.
by TheBx41 October 16, 2012