To acquire somethingimmediately but pay for it later. Most often used when buying drugs but quite valid for any kind of purchase.
There are thee possible origins of the term:
* The vendor keeps a list of who owes what, and "ticks" them off the list on payment
* The vendor has to wait, the clock is ticking
* The customer is a filthy parasite, like a tick on a dogs back.
Customer: What sandwich can I get for six-fiddy?
Vendor: Sorry, sandwiches start at eight dollars.
Customer: Can I get one on tick?
Vendor: I think not.
To acquire drugs on a banker/customer loan scenario. Instead of paying the initial capital for said drugs , Usually higher class (A,B's) the customer will make payment later at a mutually agreed date between the bankerdealer and the buyer. If the capital is paid in full before the agreed time date frequently the banker dealer will usually give the customer more leighweigh on further transactions,but this is at the Dealers descretion.