Definition of "gerbil" in English

noun

1. A member of one of several species of small, jumping, mouselike rodents of the subfamily Gerbillinae, native to Africa, India, and Southern Europe.

verb

1. (intransitive) To rotate inside a monowheel or similar apparatus due to sudden acceleration or braking.

2. (intransitive, slang) To insert a small animal (typically a gerbil, supposedly) into one's rectum (a sexual practice in urban myth).