ˈhot ˌbutton noun [countable] American English
a problem or subject that causes a lot of arguments or strong feelings between people:
Your letter certainly hit a hot button.
—hot-button adjective:
hot-button issues

[TahlilGaran] Dictionary of Contemporary English ▲

See main entry: hot button

[TahlilGaran] Dictionary of Contemporary English ▲

hot button
[American, informal]
a subject that is important to people and which they feel very strongly about.
Gender issues have become something of a hot button of late.

[TahlilGaran] English Idioms Dictionary ▲

hot-button
[American]
a hot button - a subject that is important to people and which they feel very strongly about.
Sex discrimination in employment is a hot-button political issue now.
(always before noun)

[TahlilGaran] English Idioms Dictionary ▲