gas up

1. 1.

   fill with gasoline

   “Gas up the car”

   Broaderfuel

Questions about gas up

What does gas up mean?

gas up means "fill with gasoline".

Is gas up a common word?

gas up 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.