Longman Dictionary of Contemporary English homepage

gas

2 verb
     
gas2 past tense gassed, past participle gassing
1 [transitive] to poison or kill someone with gas
2 [intransitive] British English informal to talk for a long time about unimportant or boring things [= chat]:
They were just gassing away.

gas up

phrasal verb
TTC to put petrol in a car:
We'd better gas up before we go.
gas something ↔ up
George gassed up the car.
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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