The adjective describing someone who slept on their tennis racket.
Tom is gridfaced since last night.
by skyjuice December 30, 2008
A physical state whereby a person has consumed so many alcohol beverages that they consequently lose all control of human functionality and barf into a grid - or other plumed in waste disposal systems.
That girl over there is so gridfaced.
by Welshhh94 December 23, 2013