backwash

Backwash is often created inadvertently or unintentionally when liquid escapes the mouth during the process of drinking, though it can also be created intentionally by an act of spitting or purposely letting liquid fall from one's mouth and back into the container.

When multiple people drink from the same container, there will usually be some amount of backwash put back into the container; as the number of sips increases, in general, the concentration of backwash also increases.

"Dude, I don't want your backwash." (This person has perhaps declined someone's offer of their nearly empty can of Coke).

by Hari____ April 27, 2006

Nebraska Backwash

The act of Oral sex. When the girl from the decent of a redneck gets tired of her breath smelling like hick that she uses some listerine. She then gives another redneck great oral sex. The man ejaculates into her mouth, she spits everything into a cup, and the man then drinks it.

Fuck man, no more Nebraska Backwash for me. That shit taste horrible.

by littleboi_ February 17, 2013

The last 10% is 90% backwash

A phrase conveying the idea that the last 10% of a drink is comprised of 90% backwash.

Bro 1: Dude, you can't leave a wounded soldier on the table.
Bro 2: No bra, The last 10% is 90% backwash anyway. There's basically no beer in there.

by Nrbelex September 28, 2010

chunky backwash

During doggie style intercourse you put your finger down your throat and blow chunks on your partners back. If your partner is excessively repulsive this may happen naturally.

I gave your mom the chunky backwash last night.

by stephano October 17, 2003

Missouri Backwash

After giving a guy a blow job and having his load blown in your mouth, you proceed to spit the contents back at his face.

I totally Missouri Backwashed this guy last night.

by Lizarah February 14, 2009

brownie backwash

The slight taste of shit that one tastes when rimming the anus of another person.

I stopped eating his ass when I noticed a little brownie backwash.

by Mike Davidson December 28, 2003

backwash

The filmy, cloudy residue at the bottom of a drink that you get when you pass a drink to someone else. Always seems to be at the bottom, separate from the rest of the drink, like oil and water.
Also a good way to determine if someone has eaten fish or tomatoes recently.

Soph: Can I have my coke back, now?
Tat: Yeah, here you go.
Soph: Is that backwash at the bottom?
Tat: Er...
Soph: You keep it.

(incidentally, if anyone gets a bottle with backwash in the bottom, try refilling it with its original liquid as well, so it's full, then heating the bottle from below. Because it's seperate, I wonder if it behaves like a lava lamp. If anyone wants to try this, feel free to enlighten me.)

by ANBY June 17, 2004