The Walter Matthau Mouth 

The act of screwing a woman with a rather large vagina, that was shaved about 2 weeks prior. An old man with no teeth and a 5 oclock shadow giving you a hummer, slobbering out of the sides of his mouth.

Wow, last night I picked up that old bitch from the bar, went back to her apartment and her box was like The Walter Matthau Mouth!

My scoutmaster tried to blow me at camp. I wouldnt let him, his shit is like Walter Matthau dude!

The Walter Matthau Mouth by captain jeff January 30, 2008

Mother Fucking Lower Moreland Purified Water 

A Philladelphian slang word for the kids from the suburbs in Pennsylvania who only drink purified water, because they’re too snobby for spicket water, which they call sink water. Also called MFLMPW

Mother Fucking Lower Moreland Purified Waters are pathetic

Mother Fucking Lower Moreland Purified Water by slingshot.aj July 16, 2019

watermouth 

a person (usually a gay man) that spreads gossip and drama and generally minds everyone's business but his own. Watermouth typifies the bright red coloration of the lips on this type of person, as I'm sure you can guess why.

That morning producer is always talking about everyone else's personal matters. What a watermouth!

watermouth by Buttersworth January 27, 2009

Watermouth 

Someone who is weak and cannot handle any level of spicy heat (from capsaicin) and/or any hot peppers. Resulting in their mouth watering profusely.

"My friend is so weak and such a Watermouth; he can't even eat a Bell pepper without his mouth water being able to fill a child's swimming pool."

Watermouth by notwatermouth May 25, 2014