"hoax, deception," 1884, spouf, name of a game invented by British comedian Arthur Roberts (1852-1933); sense of "a parody, satirical skit or play" is first recorded 1958, from verb in this sense, attested from 1914.
To fool; hoax; tease: He was just spoofing (1889+)
[coined by the British comedian Arthur Roberts, born 1852, as the name of a nonsense game he invented]