Top Definition
You're so tired your head keeps falling forward. You're able to catch yourself mid-head fall most times, but eventually you smack your face on the table or whatever might be in front of you. IE. Keyboard, plate of food, etc...
Look at Bobby. He's about to do the Tabletop Bebop!

Jim must have had a rough night, he's doing the Tabletop Bebop.
by KforKendetta November 27, 2010

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