A tympanic tickle is a Ferengi erotic act that is a technique of oo-mox.
Aluura studied the Tympanic tickle by reading Oo-mox for Fun and Profit. (DS9 episode: "Profit and Lace")
Quark once had a feather become stuck in one of his ears after he received a Tympanic tickle from a woman he deemed an amateur. (DS9 episode: "Afterimage")
When Ro Laren once blew into Quark's ear, Quark thought she had executed a perfect tympanic tickle, albeit without a feather. (ST - Typhon Pact novel: Plagues of Night)