title / heading of an article etc. / headline in a newspaper

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

a book / a script; a scenario / source; origin; root

just

What? What did you say?

whatchamacallit, X

title page (page in a book)

what

What?, Huh?

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