Other forms: titillating; titillated; titillates
A juicy steak may titillate your taste buds, or your friend's locked diary may titillate your curiosity. Titillate means to excite someone's imagination.
Titillate comes from a Latin verb that means "tickle," and anything that titillates does seem to tickle the imagination. Sensational news headlines are deliberately written to titillate, making it hard not to pay attention to them. A display of fabulous pastries in a bakery window can titillate your appetite, while whispered rumors about your high school principal's past life as a rodeo clown may titillate your curiosity.