Used to ask the name of a woman. / Used to ask the name of a female animal.

Alternative form of which foot the shoe is on

(colloquial) Introduces a compromise or arrangement where the interlocutor has some benefit or advantage.

Used to ask for the current day of the week or of the month.

(rhetorical question, informal) Indicates that the interlocutor (more precisely, the one being asked the question) is acting in a crazy or unprecedented way.

(idiomatic) Used to express disappointment about someone's uncharacteristic or abnormal past actions.

(dated) Synonym of know what is what

(dated) whatchamacallit

(rare) Alternative form of whatsoever

(emphatic) Used to express that the thing in question is an ideal example.