Top Definition
When a child's bookbag is so full that his\her bag ends up acting like a turtle's shell causing slouching and slow movement.
Billy Jean:Boy Diana sure has a full backpack
Smooth criminal:Yea poor Diana has a turtleback bag
#related words:full bag #misspellings:baug #tutleback #turleback #turtlleback
by LEOGEO October 16, 2009
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