dicker with (one)
To haggle or negotiate with one. Don't dicker with me over the price of this mirror, bub—take it or leave it!
dicker with someone (for something)
and dicker with someone (over something)to bargain with someone for something; to haggle with someone for something. I don't want to stand here dickering with you for a cheap trinket. I don't want to waste time dickering with them over a few dollars.