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IPA(Pronunciation)

humorous idiomatic intransitive perfective vulgar

ひどく殴る / めちゃくちゃにする / ひどい害を与える（下品な慣用表現）

English Meaning

(vulgar, humorous, intransitive, idiomatic) to get medieval, to beat up severely, to fuck up, to inflict severe harm [+dative = upon someone]

アダムがオフィスに忍び込んだとき、彼の同僚は彼に対して徹底的な制裁を加えることに決め、その結果、チーム全体に大騒動が巻き起こった。

When Adam sneaked into the office, his coworker decided to get medieval on him, which caused an uproar among the entire team.