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A combination of the names Stewart and Colbert, hosts of the American talk shows "The Daily Show with John Stewart" and "The Colbert Report" which air back to back on Comedy Central.
I thought about going to vote in the primaries, but I decided to stay home and watch Stewbert instead.
by Jesse Hattabaugh January 10, 2008
1. The combination of the names Jon Stewart and Stephen Colbert.

2. Short term for the hour of television featuring The Daily Show and The Colbert Report.

3. A synergy of comic genius unprecedented in history.
"It's 11pm - time for the Stewbert hour!"
by Jackie Dee January 11, 2007