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1.
The last piece of shit that just won't break off from your ass.
Damn it I got a hung bomb. Now I'm going to have to wipe it off.
by HufMyBone October 08, 2005
 
2.
A turd that comes part-way out of your ass then gets stuck, causing one to strain severely in order to pass it.
Jim: Damn! Did you see how red Frank's face was when he came out of the shitter?

Jack: Yeah, I bet he was in there trying to drop a hung bomb.
by Strycher69 June 19, 2006