the fuck

Phrase

slang vulgar

(vulgar, slang) Used after interrogative pronouns as an intensifier to express anger, frustration, incredulity, or other strong emotion.

Japanese Meaning

疑問詞の後に用いられ、怒り、苛立ち、不信感などの強い感情を強調するための、卑猥な口語表現

Who the fuck left the door open all night?

いったい誰が一晩中ドアを開けっぱなしにしたんだ？

Sense（1）

(vulgar, slang) Used after interrogative pronouns as an intensifier to express anger, frustration, incredulity, or other strong emotion.

"Look at this!" she says, mock-appalled at the scene. "Seriously, what the fuck is this about?"

Sense（2）

(vulgar, slang) Used after verbs forming a part of a phrasal verb as an intensifier to imply aggressive emphasis.

Shut the fuck up.

Sense（3）

(vulgar, slang, by ellipsis) Used as a shortened form of the common interrogative phrases.

The fuck was that? ― What the fuck was that?

Sense（4）

(vulgar, slang) Used to emphatically express that something isn't true.

‘You're not a self-respecting person.’

‘The fuck I ain't,’ the kid said.