Top Definition
The after effects of brushing your teeth where a gross white residue stays in your mouth until washed away with soda or picked out with your finger, probably the cause of your toothpaste hangover(see June 16's Word of the Day).
Toothwaste-The white layer of residue laying on your gums
by SofaKingWiiToddEdd June 29, 2011
1 more definition
The gunk people leave on their toothbrush when they are done brushing their teeth
I hate using his bathroom because the toothwaste I have to see in the sink on on his toothbrush is disgusting.
by RRobyn April 17, 2009

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