To tickle; as, to titillate the nose with a feather.
- To stimulate by touching lightly; tickle.
- To excite (another) pleasurably, superficially or erotically.
- To excite another, especially in a superficial, pleasurable manner: "Once you decide to titillate instead of illuminate . . . you create a climate of expectation that requires a higher and higher level of intensity” ( Bill Moyers).