"a spoof," British slang, 1958, from verbal phrase send up "to mock, make fun of" (1931), from send (v.) + up (adv.), perhaps a transferred sense of the public school term for "to send a boy to the headmaster" (usually for punishment), which is attested from 1821.
senatorial
send
sended
sender
send-off
send-up
Seneca
Senegal
senescence
senescent
seneschal