(interrogative) That or those of whom or belonging to whom. / (relative) That or those of whom or belonging to whom.

(interrogative) Of whom, belonging to whom; which person's or people's. / (relative) Of whom, belonging to whom. / (relative) Of which, belonging to which.

Who is suffering or losing out in a given situation.

(rhetorical question, sarcastic) Used in response to someone’s threat suggesting that the person in question cannot do what she or he says alone.

Alternative form of which foot the shoe is on

(poetic) whosesoever

(fandom slang) A fan of the British improvisational comedy television series Whose Line Is It Anyway? or its American remake.

plural of Whoser

Of whomsoever.

That of whomsoever.