Slang: This procedure is preformed by a doctor when he or she needs to take a bacterial swab at the base of the penis.

Similar to that of a black powder musket, it involves the insertion of a long cotton tip swab into a half errcet penis to obtain samples from the inner base of the penis to conduct a bacterial test for sexually transmitted diseases such as Gonorrhea.
The doctor explained he had to Pack the Musket to check what STD Kris had contracted

The doctor packed Kris' musket to test for an STD.

Kris had his muket packed
by Megawattz August 1, 2009
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The act of inserting a long, thin object into a male's urethra, as far as it will go.
-Dude what are you doing with that glow-stick?!?!
-Im just packing the musket man.
by T-Killa! November 16, 2010
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V. Jerk off, beat off, the knuckle shuffle, masturbation. The motion used to pantomime masturbation is strangely close to the motion used to pack a Civil War style musket.
I woke up this morning with raging morning wood so I started packing the musket in the shower.
by the steve kramer August 15, 2011
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When someone has to take a dump so they ask a friend to shove some sort of shaft (preferably a golf club or broomstick) up their ass hole so they no longer have the urge to shit.
Me- Hey man, we still have a few more holes until we get to the clubhouse and I really have to shit. Do you mind using my 3 iron to pack my musket?
Friend- Sure bro, no problem. Bend over!
by musketeer69 January 8, 2019
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The act of having anal sex while the other party is constipated.
Dumb thick Karen was constipated for 3 days so i had no other choice but to started packing the musket.
by jimlahey_securingthabag January 3, 2020
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