gas up
1. To put gasoline into a vehicle, especially to fill the tank to capacity. You should gas up before hitting the road. Dad, can I go inside and get a slushie while you gas up? Sophia's car gets really great mileage. On our road trip, we could drive for hours before we had to gas up.
2. slang To drink alcohol to the point of intoxication. The guys are down at the bar gassing up before the game. Yeah, I would gas up when I was younger, but I've been sober for years. If you're gonna gas up at the bar tonight, please stay over at Jake's place, OK? Don't even think about driving yourself home.
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