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 ?
1.(phrase) - When something is extremely distressing in a conversation or idea, that the only way to explain it is to say something unrealistic and nonsensical.
"Dude, I cant believe she dated him, got knocked up AND hitched! I'm gonna BLACKMAIL THE WORLD INTO TICKLING THE UNIVERSE!"
To take something small, that doesn't quite qualify as a theft. Probably from the Danish "skæv" or the Dutch "scheef", both of which are pronounced similarly, meaning "askew, or not quite right'. To change an item's ownership without permission, but only something small and of little worth.
"I skeefed an apple off the neighbor's tree." "I skeefed some chips outta your bag when you looked away." "Don't skeef my chair when I go to the bathroom."