Dinker

A term used to describe a person acting in a generally dickish or selfish manner. This person displays a general lack of consideration for others and typically only thinks of themselves. It can also be used as another term for a penis. This term traces its roots to the Houghton family that hails from Texas.

Byron, "I could really go for some dinker on this fine afternoon."
Byron, "Time to suck some wholesale dinker" or "Wow that gorilla's dinker is bigger than mine"
Allen, "Quit being such a dinker Byron"