Top Definition
baby tuba is something that you hear when you are very tired and your very awake friend is blabbing at you. Basically, it is when you hear the wrong thing.
Tina: We should get high.
Summer: Wha, baby tuba?
by rifka123 May 03, 2009
1 more definition
the aftereffect of when two people are slightly high off of natural 7/11 energy pills that they downed with french fries on a deserted street corner at four in the morning.
damn im in the middle of such a bad baby tuba right now!
by kaboobless. May 18, 2009

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