jump seat

1. 1.

   a folding seat in an automobile

   Broaderseat

Questions about jump seat

What does jump seat mean?

jump seat means "a folding seat in an automobile".

Is jump seat a common word?

jump seat is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.