何(なん)てことMy goodness!, Good lord!, Holy cow!

計算(けいさん)ミスをしちゃった！何(なん)てこと！

I made a calculation error! My goodness! {My goodness!, Good lord!, Holy cow!}

何(なん)てこと！家(いえ)の中(なか)に泥棒(どろぼう)が入(はい)ったようだわ！

Holy cow! It seems like a thief has broken into the house! {My goodness!, Good lord!, Holy cow!}

寝坊(ねぼう)をして大切(たいせつ)な面接(めんせつ)に間(ま)に合(あ)わないなんて、何(なん)てこと！

Good lord! I overslept and didn't make it to the important interview on time, what a disaster! {My goodness!, Good lord!, Holy cow!}

非常時(ひじょうじ)に上司(じょうし)に連絡(れんらく)するか否(いな)かすら分(わ)からないとは…何(なん)てことだ！

Good lord! Not even knowing whether to contact the boss during an emergency... what a situation! {My goodness!, Good lord!, Holy cow!}

一緒(いっしょ)に行(い)くものと思(おも)っていたのに僕(ぼく)を置(お)いて先(さき)に行(い)くなんて、何(なん)てこと！

I thought we were going together, but you went ahead without me. Good lord, what's the matter with you! {My goodness!, Good lord!, Holy cow!}