in flagrante delicto /ɪn fləˌɡɹæn.teɪ dɪˈlɪk.təʊ/ adverb2 •In the act of committing a misdeed.He would be caught in flagrante delicto, and, with a heavy sentence hovering over him, he would probably be induced to name his accomplice. — 1908 •While performing sexual activity.I would add to that the fact that, if we are happy to be caught in flagrante delicto in a picturesque setting, there would be something almost humiliating about being caught somewhere as ugly as that. — 2002
