adv. phr. 1. Out of fuel (said of automobiles). Be sure you don't run out of gas when you go on a long distance trip by car. 2. Rundown; depleted of energy; in poor physical condition. Mary said she had to take a break from her job as she was running totally out of gas.
OUT OF GAS
Meaning of OUT OF GAS in English
American idioms English vocabulary. Английский словарь американских идиом. 2012