Exhaling hot air onto your index finger and then inserting it into another person's ear. Similar to a Wet Willy.
Person 1: "My inner ear is feeling dry"
Person 2: "Want me to give you a steamy tommy, freshen that up a bit?"
Person 1: "No, thank you"
Person 2: "TOO BAD!" *Puts warm, slightly moist finger into ear*