> Westm. Papers 1 Nov. 107 Who has not suffered when he has played correctly second hand..from his partner assuming that there has been an ask for trumps?
> 2014 D. Chapman Ascendant lxxiii. 301 A plane? Full of people?.. That is an enormous ask.
When used liked that it's synonymous with request. If heard it often used as "that's a big ask". Some example usages[1] since you seem a bit skeptical.
Noun
ask (plural asks)
https://en.wiktionary.org/wiki/ask