look up any word, like blumpkin:
 
5.
on deck is generally used to discribe somebody whos prepared, and has weed

-I need to get faded.

-Talk to Jay, hes always on deck!
by alex June 16, 2006
 
1.
To have something readily available or within reach.
I keep them choppas on deck!
Bitch I got stacks on deck!
by Aok706 April 16, 2007
 
2.
To be in possession of narcotics with intention to distribute.
"Pico, this fool around the corner needs an eightball. You on deck?"

"Yea, I'm packin.' Lemme go scale dis shit."
by GRUA February 10, 2006
 
3.
when a hustla has his product of choice ready to sell
i got dvds, cds, & dro on deck
by yungn CTC April 26, 2006
 
4.
To be in possession of drugs with the intent to sell.
"Hey, where can I find some weed?"
"Mitch is on deck."
by briskisgoodforu September 11, 2009
 
6.
Can be used as a question or statement of who is or should be next or aks the question of what's coming up.

This phrase is an old shipping term. It was used to find out who was or was supposed to be on guard, doing duties, etc. This term later moved into the realm of baseball and is still used to this day as a description of who's going to be batting next.
"Let's get this line move'n people. Who's on deck?"
by Meeco26 August 10, 2004
 
7.
next person to bat in a baseball game
"Giambi is needs a double here in the sixth. If not, then the Yanks will have to count on Jeter whose on deck."
by Lynx January 04, 2004