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gas up

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phrasal verb [intransitive/transitive] American informal
Word Forms
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present tense
I/you/we/theygas up
he/she/itgases up
present participlegassing up
past tensegassed up
past participlegassed up
  1. to put gas in a car or other vehicle

    Let's gas up before we get on the highway.

See also main entry: gas

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