BT Ber 62a(15) :דמי פומיה דרב כמאן דלא טעים תבשילא‏ : PN's mouth is similar to (that of ) one who has not eaten a cooked dish [i.e. you act like one who has never before had sexual intercourse]
See the entire entry for dmy vb. to be like

BT Ber 62a(15) :דמי פומיה דרב כמאן דלא טעים תבשילא‏ : PN’s mouth is like that of one who has not eaten a cooked dish [i.e. like one who has never before had sexual intercourse]
See the entire entry for taḇšīl, taḇšīlā n.m. cooked dish