1 definition by Ernesto 4

A sack is a high school prank. This is how its done.

Step 1: Grab someones bookbag.
Step 2: Empty out the bookbag.
Step 3: Turn the bookbag inside out.
Step 4: Put the books back in.
Step 5: Zip up the bag, and have the metal zipper holding things on the inside of the bag
Guy: haha, that kid just got sacked.

Guy 2: owned
by Ernesto 4 April 3, 2008
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