SPAT Meaning of SPAT in English n. & v.n. the spawn of shellfish, esp. the oyster. v. (spatted, spatting) 1 intr. (of an oyster) spawn. 2 tr. shed (spawn). [ AF, of unkn. orig. ] Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012