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to gas up
01
fill with gasoline
Grammatical Information
Composition
phrasal
Action verb
Regular
Separable
Particle
up
Base verb
gas
Present tense
gas up
3rd person singular
gases up
Present participle
gassing up
Past simple
gassed up
Past participle
gassed up
02
to praise, hype, or boost someone's confidence
Slang
What does "to gas up" mean in slang?
The phrase "to gas up" means to praise, encourage, or hype someone, often boosting their confidence. The structure comes from "gas," meaning energy or excitement, with "up" intensifying the effect, implying someone is being "powered up" emotionally. It is informal slang commonly used in social and online contexts to describe giving someone strong compliments or encouragement, sometimes sincerely and sometimes excessively.
Examples
Everyone was gassing him up after his amazing presentation.
