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to put an end to one's own unnecessary and usually annoying rambling.

Derived from two words: "cease" and "it"
Manny: "Yeah, that game sounds fun."

Michael: "Ok we'll play it in a second. Well not a second since we have to switch games and finish this match so more like 2 minutes unless--ceassit!"

Manny: "Thank you!"
by MgeeD August 07, 2011
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