An older expression (circa 1950's) used to describe the action of leaving one's present location (see outie)
"Gotta work in the morning, so I'm gonna hat up."
by B.T. Foster July 27, 2006
Get the merch
Get the hat up neck gaiter and mug.
To wear a condom.
"Did she make you hat up?"
by Seros October 16, 2008
Get the mug
Get a hat up mug for your fish Zora.