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1.
To carry along supplies for spontanious sex, and for the supplies to have their own place.
I saw Sarah was always carrying around a fanny-pack, but when I saw what she kept in there, I realized it was a sex-satchel!
by Darkvein January 18, 2005
 
2.
The scrotum, or referring to the scrotum and testicles as an entire package.
Oh yeah, recently i've been seeing some things that make me glad to posess a sex-satchel...
by Xerxes da Phat November 08, 2004