Dipping the bag 

one step further than balls deep. To insert your penis fully into a vagina to the point where you are also able to insert you testicles.

Not to be confused with Bopping the bag.

I heard he was dipping the bag with Sonia last night.

Dipping the bag by jamaicascreem December 11, 2010

dipping into the black bag 

taking drugs you have possession of. This is an old-school musician/junkie reference to when doctors used to make house calls, with their equipment in a black valise style bag containing stethoscope, thermometer, and, most importantly, drugs.

Man, you are nodding out and can barely stand up. You been dipping into the black bag again ?

dipping into the black bag by HankusPankus May 28, 2020