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2.
To fail. Usually in result to a poorly thought out plan. Can be used in conjunction with "dropped".
"Tim dropped a Donkeybomb in that meeting."

"I Donkeybombed the technical test."
by Tyler Frans May 06, 2008
 
1.
Farts.
Look out I've been dropping some bad donkey bombs.

by Hexis July 25, 2008
 
3.
Cheap version of the more popular car bomb that utilizes a more rudimentary mode of transportation. A poor unsuspecting donkey.
The donkey bomb took out 7 square blocks.
by Ty L July 31, 2005