the.com/bidder

Someone who turns wanting a thing into publicly admitting how much they want it.

means A person who offers a specific price in an auction or competitive sale, attempting to outdo rivals to win what's being offered.

from From Old English biddan, meaning 'to ask, request, or pray' — the same root that gives us 'bid' in the sense of a command or invitation. The auction sense developed as 'bidding' shifted from merely asking to making a formal offer of money, so a bidder is literally one who 'asks' for something with a price attached, their desire translated into a number.

auction psychology
paying more just because someone else wants it too
etymology
from old english beodan, to offer or command
winner's curse
the highest bidder often overpays, economists proved it
silent type
sealed-bid auctions hide rivals, everyone guesses blind
the.com · every word