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1.
Named after a certain university student who goes by the nickname "Doodlebug."

Def 1: When you're so tired that you pass out and no one is able to wake you up.

Def 2: When you say you'll be back after a short nap and wind up sleeping for 2+ hour(s).
"She said she'd nap for twenty minutes, but she wound up pulling a doodlebug and was late to the lecture instead."
by Butts A Plenty January 22, 2012