One who takes a nap during serious drinking hours.
" Hey lets go take some shots " - normal person

" Oh no thanks, I'm gonna take a nap instead " - Nap bagger
by A Blackout Menance January 25, 2009
A person who is so utterly boring it makes you want to take a nap.
Dude, I totally fell asleep in class today because my religion prefessor is such a nap bag.
by megatorial May 19, 2009

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