verb (used with object), tit·il·lat·ed, tit·il·lat·ing.
- to excite or arouse agreeably: to titillate the fancy.
- to tickle; excite a tingling or itching sensation in, as by touching or stroking lightly.
- to arouse, tease, interest, or excite pleasurably and often superficially
- to cause a tickling or tingling sensation in, esp by touching
v.1610s, back-formation from titillation. Related: Titillated; titillating.