fuckoff adjective 1noun 1forms 1 adjective1 •(slang, vulgar) An intensifier.I wanna see a version where they walk in with a fuckoff huge stack of floppies for their doomsday program and someone has to stand nearby and keep swapping them for the next one — 2019 noun1 •(vulgar, offensive) A lazy, incompetent, or contemptible person.Journalism […] is a cheap catch-all for fuckoffs and misfits – a false doorway to the backside of life, a filthy piss-ridden little hole nailed off by the building inspector […] — 1971 formsfuckoffs