Top Definition
The white substance that suddenly appears on a certain fat mens mouth's when they consumes large amounts of curry, vodka , mcewans export and sovereign cigs and require a drink of some helpless shmoes beverage. Also may be helping to service whangdang's using they're mouth as a medium
Bill wanted a drink of my dr pepper but he had some serious billdup. ps if they persist in pestering you a boabycheck may be required.
by master bruce June 05, 2004
2 Words related to billdup

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