チクるto tattle, to inform a superior of someone's actions

生徒(せいと)：「今(いま)ぶったな？先生(せんせい)にチクるぞ！」

Student: "Did you just cheat? I'm going to tattle to the teacher!" {to tattle, to inform a superior of someone's actions}

同僚(どうりょう)のミスを先輩(せんぱい)にチクったら同僚(どうりょう)から嫌(きら)われました。

I was disliked by my colleague after I tattled to my senior about their mistake. {to tattle, to inform a superior of someone's actions}

カンニングをしたことを級友(きゅうゆう)にチクられて留年(りゅうねん)になりました。

I was held back a year because a classmate tattled on me for cheating. {to tattle, to inform a superior of someone's actions}

社長(しゃちょう)に上司(じょうし)のパワハラをチクっただけあって上司(じょうし)が静(しず)かになった。

The boss has quieted down since I tattled to the president about my supervisor's power harassment. {to tattle, to inform a superior of someone's actions}

上級生(じょうきゅうせい)：「俺(おれ)があいつを殴(なぐ)ったところを見(み)たな？チクってはならないぞ。」

Senior student: "You saw me hit that guy, right? You must not tattle." {to tattle, to inform a superior of someone's actions}