知ったことか

しったことか

I don't give a damn

Meanings

also 知った事か

  1. expression, colloquial I don't give a damn; that's got nothing to do with me

Its kanji

In sentences

君きみの知しったことか。 Mind your own business! #178145

お前まえの知しったことか！ Leave it alone! #226950

俺おれらの知しったことか。 That's not our business. #3360149