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Flinging poo left over from a night of anal sex. This occurs after a night of anal sex.

In the morning, a small bit of poo happens to be on the bed, then proceed to "lob the rocket", or to Throw someone's poo at the owner of the poo.
After I fucked her in the ass, there was shit on the bed. So I HAD to lob the rocket!
by Gregg August 21, 2004
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