(Variations: her or its or your may replace his; face or ass may replace name)An unspecified or unspecifiable person or thing; someone or something one does not know or remember the name of or does not wish to name; whoozis: What did old what's-his-face have to tell you?/ But aren't you afraid you're going to get on Professor What'sHer-Face's shit list (first form 1757+)