to make someone excited intentionally but only a little, usually with sexual images or descriptions

So many adverts these days are designed to titillate. 如今大量的广告都设计得要让人感到刺激。

humorous Carter's biography is only spoiled by the fact that he refuses to titillate (= interest) his readers with any gossip. 卡特的传记减色不少，只是因为他拒绝以小道消息来取悦读者。