A full mustache or 'stache worn in fu manchu style with a goatee, with or without a patch, in the style of former St. Louis Cardinals home-run hitter Mark McGwire.
Originating from old Irish, the McGwire was the village man who always thought of himself as big and grand, when in reality it was much talk. The McGwire would always be hated upon by other villagers.
An adjective used to describe someone whose outfit fabulously embodies the early 2000s aesthetic. A reference to the early 2000s tween fashions worn by Hilary Duff as the star of the Disney Channel series Lizzie McGuire
The ultimate level of intoxication. This happens beyond the blackout stage, and can cause one to do ricidulous, unexplainable things. When McGuired, one often does not wake up in their but, but often on their couch or kitchen floor.