When you wake up next to some chick you don't recognize, you're hung over, she wants to go again, and you're morning wood throbs so hard it triggers sharp pains in your head.
I had steeley dick when I woke up with that high schoolchick until I realized she was jailbait. Then I had uber steeley dick.
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi