effeff /ef/ verb [intransitive] British English spoken informalWord Origin
WORD ORIGINeff
Origin:
1900-2000f, the first letter of fuck
Examples
EXAMPLES FROM THE CORPUS
Feminism has served its purpose and should now eff off.
He can only tell me to eff off.
1effing and blinding swearing: Did you hear her effing and blinding at him?2eff off! used to tell someone to go away instead of saying fuck off →effing