Permagrin 

The smile caused by compliments or flirting which is difficult to remove from ones face.

She developed a permagrin when she read the text message from her boyfriend.

Permagrin by tallbrisboy March 22, 2010

Permagrin 

PerM A GriN = A state of real, complete, happiness, usually associated with a long lasting smile with blissfully wide post-coital grin. This blank, starry eyed grin is only experienced under rare conditions in the mountains, open freeways, water and occasionally Sky

Motorcycle + Loud AMAZING Music + Open Highway = PERMAGRIN

"He had a permagrin on his face from ear to ear. The blissful look was undeniable, This man is happy. . . . . "

Permagrin by D.J Raynes September 21, 2009

permagrind 

This word refers to someone who has smoked so much kind bud that it is hard not to have a permanent grin on their face. ripped, stoned, burnout

What are you smiling at? Dude, I'm just permagrind

permagrind by kriztof June 30, 2007

Permagrin 

A state of real, complete, happiness usually only experieced in the mountains.

Just hike and biked to fourteeners and I am all permagrin.

Permagrin by Sniggins May 8, 2003

permagrunge

Dirt left over after a thourough cleaning. Especially in the prints in one's hands or under the fingernails. Essentially, clean dirt.

After repairing the greasy engine, Rob washed his hands three times but was unable to remove some of the permagrunge on his hands.

permagrunge by Ezra Moon April 26, 2006

permigrin 

you know when your smiling for a really long time and then all of a sudden when the situation isnt funny anymore, you stop smiling, but YOU CANT STOP SMILING because youve been smiling for too long, therefore its difficult to stop smiling.

"omg sarah, you have no idea how hard i just laughed. can you say permigrin ?!"

permigrin by Heidiixx May 27, 2009

Permagrin 

a facial expression that a person gets after smoking a marijuana cigarette.

Look at Jerry he's had permagrin for an hour... fucking stoner.

Permagrin by jasper November 12, 2003