Perma-Grin 

The seemingly permanent smile that someone has after spending time with someone that they are very fond of, or doing something that they enjoy.

Kathi leaves work everyday with a Perma-grin. She must really love her job!

Look at the Prema-Grin that Christina is wearing this morning! I wonder who she was with last night?

Perma-Grin by AnthonyOhio August 4, 2007

perma-grin 

a smile that never fades; a huge happy face all the time no matter what

That young lady has got a perma-grin on her that no one could possibly resist -- no one.

perma-grin by tik-tiki October 18, 2008

Perma-grin 

It's the " permanent grin " you receive when you're stoned.

" Man, my cheeks are sore. I had a perma-grin for about an hour. "

Perma-grin by GOES OUT TO WILL GREGG! March 26, 2008

Perma-grin 

An automatic and irremovable smile that appears on the face of people who are thoroughly intoxicated with some narcotic; usually marijuana, hashish, mushrooms, or lsd. Can be found in other cases such as on television morning news anchors, beauty pageant contestants, pop queens, and mental patients.

"Look at Greg! Dude has Perma-grin! That must be some good shit!"

Perma-grin by Tam Tam in the Bay December 28, 2005

Perma-grin 

the 8+ hour long visage of transcendental amusement that accompanies psychedelic experiences, namely LSD and shroom trips.

"Dude, its kicking in. You've got the perma-grin!"
"You too man. Oh shit. Look at my hands...."

Perma-grin by twamp November 14, 2003

Perma-grin 

That tight, pained smile resulting from a budget face lift. Usually apparent on past-their-prime female celebs, ie. Joan Rivers

Who has a bigger perma-grin Mary Tyler Moore or Carol Burnett?

Perma-grin by Dan Voit April 17, 2003

perma grin 

to be constantly grining.usually from the affects of acid, LSD.

Man he's tripping so bad he got permagrin

perma grin by turbo October 8, 2003