lemonmouth 

noun: lemonmouth
The resulting appearance when a person tries to contort their face into a natural-looking smile while hiding their nasty teeth.
No actual lemons are sucked to create this look.

verb: lemonmouthing
The act of posing to form a puckered, pursed lip grin.

1. She has a decent body and a butterface; but the worst part is her lemonmouth.
2. The Queen of England was lemonmouthing in the photo.

lemonmouth by watchit September 19, 2008

lemonmouth 

noun: lemonmouth
The resulting appearance when a person tries to contort their face into a natural-looking smile while hiding their nasty teeth.
No actual lemons are sucked to create this look.

verb: lemonmouthing
The act of posing to form a puckered, pursed lip grin.

1. She has a decent body and a butterface; but the worst part is her lemonmouth.
2. The Queen of England was lemonmouthing in the photo.

lemonmouth by a&k connection September 19, 2008

lemon mouth

A game, usually played while drinking, where you put a lemon slice in your mouth and suck on it as long as possible. Unlike in the game of life, the person who sucks the longest wins.

First seen in the "Prince" episode of New Girl.

"Surrounded by celebrities and millionaires, and you dingbats are playing lemon mouth. Rind me, woman." -Schmidt

lemon mouth by Kelsey McJon February 4, 2014