spleef /spliːf/verb 3noun 1forms 3 verb3 •To play spleef.As parents are confused at the dinner table when their offspring talk about ‘Endermen’ and ‘spleefing’[…] — 2017 •(slang) An accidental raspberry when smoking a joint. •(slang) Sexual action resulting in a sound resembling a raspberry. noun1 •A game in which players try to knock blocks out from beneath other players in order to be the last player standing. formsspleefed · spleefing · spleefs