orginally referring only to customers of a drug dealer be it all the time or just on lot but now has taken the form of an insult to refer to all sorts of dumbasses be it just a customer whom you tax too the point they are moronic for paying, a customer whom you continually short, or even a person who gets the wings they did not earn ripped off
1 "man that custie just bought this eigth of middies for 60!"
2 "i cut these quarter inch doses down to 10mm and sold them to that custie he pissed himself he was so excited"
3 "man did you hear about mark? he got his wings ripped off! what a custie fuck"