Any member of the rodent tribe Sigmodontini, that build their nests from cotton, and can damage cotton crops.

mole rat

(historical) An enclosed space into which rats are placed to be killed by a dog for sport.

A blood sport involving the setting of dogs upon rats in a confined space.

(historical) A member of a Gwich'in (Athabascan) tribe dwelling near Fort Yukon, Alaska.

Any of many medium to large colubrid constrictors of a kind found through a great portion of the Northern Hemisphere, primarily feeding on rodents and birds.

(UK, military, slang) A ration pack.

(US, dated, slang) A juvenile criminal gang.

Alternative spelling of ratfolk

plural of Rat Indian