Any person, not necessarily homeless, that will haggle bargain with you for your feces (chocolate gumdrops).
Someone that will approach you seemingly out of nowhere, after having shadowed you, analyzing in secret the remnants of your stanking poo, perhaps left behind in public restrooms.
They will attempt to get you to lower your standard fee - don't! Rob them blind with your penchant for poo pricing!
Jeremiah, once a stand up guy, fell victim to the thrifty prowess of the notorious East End crap-haggler Humberto "two turd" Rodriguez.
To try and convince someone to make whatever they are selling a lower price. They'll suggest a price, you'll suggest a lower one, and each of you keep on suggesting prices until you are willing to pay.
A person who is obsessed with finding a guy with the best dick possible. They haggle over the price (the characteristics of the guy) and try to determine if the guy is worth the dick.
Tom was going to propose to Melissa until he found out she was a dick haggler and knew he didn't have enough to compensate for his average member.