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)

• not bat an eyelash
• not bat an eyelid
• not be a barrel of laughs
• not be a bundle of laughs
• not be a happy camper
• not be all beer and skittles
• not be all fun and games
• not be all it's cracked up to be
• not be all moonlight and roses
• not be all there
• not be a patch
• not be a patch someone
• not be a patch something
• not be a pretty sight
• not be as black as are is painted
• not be as black as it is painted
• not be as black as you are is painted
• not be as black as you it is painted
• not be backward in coming forward
• not be bag
• not be brother's keeper
• not be cup of tea
• not be department
• not be for the faint-hearted
• not be half bad