gas2 past tense gassed, past participle gassing
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 upphrasal verb
to put petrol in a car:
We'd better gas up before we go.
gas something ↔ up
George gassed up the car.