To take a short nap during the daytime hours (best in the afternoon) in order to maintain a healthy routine or to prepare from any additional events that would otherwise drain much-needed energy.
Does not necessarilly mean hanging upside-down while sleeping.
"I'm going to go see Joesph D'Angeli later, so I need a bat-nap before we go."
by The Horn'd One November 30, 2009
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a long nap one takes in the middle of the afternoon, almost like a vampire sleeping during the daytime
mortal: "why didn't you answer my call. i called you at, like 3 o'clock."

bat napper: "i was taking a bat nap."
by mattievh July 16, 2008
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Taking a nap while hanging upside down naked and pooping on your own face.
While hanging from the jungle-jim I took a bat nap.
Instead of doing pull-ups I took a bat nap from the bar.
I feel utterly refreshed after a nice long bat nap.
I didn't have time to take a shower after my bat nap so I just went straight to the office.
After taking a bat nap at my friends house I blamed it on the dog.
Bat Naps are all the rage in Canada.
Celine Dion takes a bat nap before performing every night.

by The Reality December 26, 2007
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