Asks someone for the Wi-Fi password.

what should I do?

Used to ask the interlocutor what they would like to order, to buy or have a look at.

Alternative form of which way the wind is blowing

Regardless of what you think.

(colloquial, humorous) A riposte to someone who has just stated an obvious conclusion.

(dated) whatchamacallit

plural of what-d'ye-call-it

plural of what-d'ye-call-'em

Used to indicate that someone has authority to make a final decision.