When you want to make someone look like a homosexual
. Say it when they are turned away from you and they will most likely turn around no matter their sexuality. When he realizes what you have done, you will either share a jolly laugh together or he will punch you in the face.
This is done mainly by low-end middle school kids or general attention-seekers.
Josh: "Hey, Jacob, I'm naked!"
Josh: "Hahaha, you looked! (cough)queer(cough)"
Jacob: "All right mate, this was cute the first couple times, but you crossed the line now" (proceeds to deliver a can of whoop-ass)