look up any word, like full-donald:
 
1.
A term used to describe the high of heroin.. it is often mistaken as being very tired (which works out well for the user!), but it is more like "nodding" in and out of semi-consciousness. That's really the best way to describe it. It's like a series of times where the user will fall asleep for 30 seconds - a few minutes out of nowhere, and then suddenly snap into wakefulness again. They often are in very uncomfortable positions, too. (because they were not really planning or expecting to be sleeping!)..the term can also sometimes be heard with opiate-based pills, but generally it is specific for being high on heroin.
After shooting alot of H, i could see by the uncomfortable way he was sitting-with his head hanging all limp towards the ground- that he must be nodding off!

"Yesterday we did a few bags and after a few minutes, we were all nodding off."
by dollyheart December 02, 2007
 
2.
To pass in and out of conciseness within a few seconds from doing too much heroin.
"What's up with Ted? He keeps trying to talk but then he just passes out and waking up confused?" - Guy 1
"He's just nodding off. He should go a little easier on the herioin.
by harddrugcandy October 22, 2012
 
3.
When you sipping lean and trying not to fall asleep
We were sipping syrup and we was nodding off
by Young cuz blood September 23, 2014
 
4.
When you smoke a grip of heroin and fall in and out of sleep.
I had this crazy ass dream while i was nodding off the other day.
by dope fiend 16 October 30, 2007