Two observations;
1), You made a mistake in telling your female friend. Why do people feel the need to dump their fetishes on people they're not romantically involved with? I don't know what any of my friends are into, and I don't need to know. Were you hoping she'd offer to let you tickle her, or were you just dying to out yourself to somebody?
2), when something like you described in the OP happens, I usually snark right back something like, "So what're you trying to say?". They'll either shut up, everyone'll laugh it off, or they'll elaborate. If they elaborate, the proper response is, "oh, I'm weird? What about some of the things you're into? Do tell, so I can make fun of them in front of everybody."
I have no tolerance for people who try to humiliate a friend in front of a crowd. If they pull that shit, the gloves come off.