1 definition by AnthonyOhio

Top Definition
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?

by AnthonyOhio August 02, 2007

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