effing

Từ điển Việt Anh Việt 4in1 - English Vietnamese 4 in 1 Dictionary

ef‧fing /ˈefɪŋ/ BrE AmE adjective [only before noun] British English informal
an offensive word used to emphasize that you are angry and to avoid saying the swear word ‘↑fucking’ directly:
She’s gone to effing bingo again.
⇨ effing and blinding at ↑eff