Someone who makes plans but never follows through by not returning phone calls or ignoring them. Also they cannot be trusted with anything and are usually lurkin around shit.
Yeah she said we were going to hang out this weekend, but she ignored me all week. What a shadester.
by LRKN_NSTY July 12, 2008
A person who cannot be trusted. Male or unisex version of shady lady.
G.W. is a real shadeser.
by Valina M. & Oradoña October 28, 2004