Top definition
an act of opening your mouth in surprise /an involuntary act of shock .
kind of like yawning but not
"mom had a gaping mouth when i told her i didn't want an arranged marriage"
via giphy
by skitttlessuck101 May 10, 2018
Get the mug
Get a Gaping Mouth mug for your coworker Vivek.
A mouth that is wide open.
Person 1:"lolemo"

Person 2:*mouth gaping*

by Waed Flup June 17, 2006
Get the mug
Get a gaping mouth mug for your brother-in-law Georges.