mossback 

A slang term used to refer to those, often from the Pacific Northwest, who prefer drizzly, overcast weather to sunshine. The term alludes to these people preferring to spend so much time out of the sun that moss grows on their backs.

"What do you mean you don't want to hang at the beach?! It's gloriously sunny in Seattle!"
"I don't know, man. I'm kind of a mossback. I miss the rain. I can just hang inside with a sweater and a good book."

mossback by R. Pompeo March 17, 2016

mossback 

a very conservative or reactionary person, especially one with old fashioned beliefs or values

I don't need to listen to an old mossback to know that things are messed up.

mossback by The Return of Light Joker October 24, 2011

mossback 

a slur towards vietnamese people during the vietnam war, referring to their camouflage.

look at him, dirty mossback

mossback by granddaddee February 22, 2025

Mossback 

An ethnic slur targeting the Vietnamese from their Guerrilla Warfare techniques during the Vietnamese War.

Look at that mossback over there.

Mossback by Viet February 22, 2025

Old Mossback 

A legendary and giant snapping turtle in Waltham, Massachusetts.

Holy shit "Old Mossback" is huge

Old Mossback by taylez April 9, 2008