Definitions by TQ.

Dickdar

The ability to guess a man's penis size after spending a few minutes with him.

Basically like a gaydar but with penis size.

Janet: Ooh he's packing heat, I just know it!
Emily: How can you tell that?
Janet: My dickdar. He totally has the personality of someone who is at least 7.5 inches.

Dickdar by TQ. November 17, 2009