to gilly willy is to do fuck all for a living. to work in an office reading porn and masturbating under your desk
i went to college with a low sperm count and now have twins, and to top it off i gilly willy in my job
by Tudor does Donkeys September 04, 2003
A Gilly Willy, is a person who has no originality with their jokes or stories. Their appearance is usually similar to a mutt or sloth like animal.
by Adzy C June 11, 2016
by MATT DRIVER November 16, 2006