1) To be living only on what the local Soup Kitchen gives you.
2) To be very low on gas.
3) The state your in if you skipped lunch.
1) I took Hobo Joe out to dinner yesterday. He's a real nice guy, and he's been running on vapors for weeks now.

2) Where's a gas station? My car is running on vapors!

3) When's dinner, Babe? I'm running on vapors...
by Boozel December 25, 2008
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