A guy so lame in bed, every woman he goes out with suddenly "discovers" that she's gay and leaves him for another woman.
"See that waitress with the buzz cut? She used to be straight and hot before Ted went out with her. That's the second time it's happened this year. He's a real dykemaker."
Any Subaru vehicle, especially those of the wagon variety. Dykes love Subarus because of their all wheel drive, which makes them masculine like a pick up truck.