1 definition by Tucson Down

Top Definition
To shut ones mouth as demanded by another.Used especially well when someone is talking out of their ass. For added effect it goes well in almost a sing-song type usage.

chup-chup-chup your mouth, chupchupchup your mouth!
Hey greg you don't know anything so chup boy!

For the sing-song usage just drag out the U and bring it up an octave in the middle, then back down at the end: chuuuuuUUUUuuuuuuup.
by Tucson Down February 26, 2006

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