(collective) A mixture of solid and liquid food scraps fed to pigs etc; especially kitchen waste for this purpose.
(by extension) Any disgusting or distasteful liquid.
I cannot believe anyone could drink this swill.
(by extension) Anything disgusting or worthless.
This new TV show is a worthless load of swill.
A large quantity of liquid drunk at one swallow.
He took a swill of his drink and tried to think of words.
Inexpensive beer or alcohol.
(Ultimate Frisbee) A badly-thrown pass.