Wiktionary
alt. 1 (context idiomatic English) a central issue, concern or characteristic, especially one that motivates people to make a choice 2 (context idiomatic marketing English) the principal desire that a salesman needs to "hit" in order to make a sale n. 1 (context idiomatic English) a central issue, concern or characteristic, especially one that motivates people to make a choice 2 (context idiomatic marketing English) the principal desire that a salesman needs to "hit" in order to make a sale
Usage examples of "hot button".
The tinkle of a red-hot button sounded as it bounced across the tiles.
Her fingers delved between her swollen lips, spreading her wetness, brushing the hard, hot button of her clit.
Where his picture is not taped to the wall of passport control, it is waiting under the hot button of every customs and immigration computer.
He forced himself to keep his eyes open as he stabbed the white-hot button with a rigid forefinger.