A female person or entity, whose name one does not remember but that is known to the person to which one is speaking.(pronoun)
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Use "whatshername" in a sentence
"The worst … the very end of “Siegfried”, when our super hero awakens the goddess turned human, who arises like a VAMPIRE in that hideous costume, in the hideous wig, w/that whitened makeup … no color (this is supposed to be a newly made, virginal human female. .the first Siegfried has seen, mind you) and Siegfried gets to sing that wonderful, passionate, love scene with Elvira or whatshername from the “Addams Family”!."
"Behar calling whatshername a "bitch" may not be constructive, but it isn't even in the same league as stomping on someone's head because you don't like their politics."
"The Queen didn’t really feel any different than Bill’s maker, whatshername, which is a shame"