You've just spent all day in a Porsche, at the racetrack, with a professional driver coaching you around. It's 11PM now, you're in the hotel room, unable to sleep because your jaw hurts so much from the grin from hell you're stuck with now.
by runnamukk June 29, 2011

by Odarroc March 23, 2024

by nowyouseemee April 22, 2020

Permanent grin. Usually a result of great fortune arriving in someone's life; a brand new love, winning the lottery (or one of my personal fav's: watching someone illegally passing on the shoulder during rush hour and promptly getting NAILED by the cops.)
source: Rebecca L. of Montana
source: Rebecca L. of Montana
Look at the perm-a-grin on his face. He is totally twitterpated with her. He smiles all the time, can't stop talking about her, he is always texting or calling her. That boy is whipped!
by Rob G. aka theTexasWolf October 7, 2015

When a cat opens it's mouth drawing air in and up into the Jacobson's organ to process the scent more deeply than your cat's nose can. Usually resulting in an open mouth grinning expression.
"What's on this blanket? The cats got a wicked carpet grin."
"Dale, the damn cat is grinning at the carpet again!"
"Dale, the damn cat is grinning at the carpet again!"
by LordOftheTacos February 20, 2023

by The Return of Light Joker January 19, 2010

My girlfriend just got braces the other day. She decided to give me head and later on, while talking to her mom, she smiled to reveal a smile full of pubes, the fuzzy grin
by big_papa February 8, 2015
