flagrante delicto
adverb or adjective | \ flə-ˈgrän-tē-də-ˈlik-tō, -ˈgran-; flä-ˈgrän-tā-dā-ˈlēk-tō \ | fla·gran·te de·lic·to
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: in the very act of committing a misdeed was caught flagrante delicto; also : in the midst of sexual activity : in the midst of sexual activity