When an individual named Grant uses his extreme intellect to humiliate, embarrass, and or really piss of another person. He often does so by performing a series of small yet irritable annoyances. A Grimey Grant uses ones flaws against them, all for his own entertainment. If you are a victim of a Grimey Grant, you will most likely spiral downwards into a deep state of depression.
“Yo what’s up with Brendan, he looks really depressed, is he good?”
—“Yeah he’s fine, he was just getting mentally abused by Grimey Grant”