crotch rocket

noun — 2 senses

crotch rocket

noun
1

Humorous, Slang A high-performance motorcycle, especially sport bikes.

2

Broadly Any high performance powered vehicle which is ridden astride, such as a snowmobile, or, jetski.

Related terms
rice rocket

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.