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?
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.)
Laughably teen magazine service on BBC Ceefax Page 577 - mainly due to its laughable content and embarrassingly self-conscious coolness. Any reference to this taboo subject should be as B*ckch*t.
Reading B*ckch*t is like having an enema, only with Super Noodles instead of water.
Bob: Did you see B*ckch*t yesterday?
Kev: Yeah, man! Busted are the best!
Bob: *smacks Kev round the head with pinking shears*
A reference that is known as an insult. Originated from an incident at a hospital. A down syndrome boy who killed many nurses at Manor Care.
You act like Anby.
Wow! Stop being an Anby!