which day of the week

day of the week

to show, to make apparent / to express, to put into words / to signify, to represent, to symbolize, to stand for

to express, to say in words, to put into words

(adverbial particle, dismissive, derogatory) emphasizes disgust, contempt, or otherwise negative feelings of the speaker: whatever

What? What did you say?

whatchamacallit, X

what

What?, Huh?

what / that thing (used in place of words you can't remember at the moment.)