Turn nasty
Phrase
UK
/tɜːn ˈnɑːsti/
US
/tɝːn ˈnæsti/
Definition
To become unpleasant, aggressive, or harmful.
Example
"The argument turned nasty quickly."
"The friendly meeting turned nasty when people started blaming each other for mistakes."
"The weather turned nasty, with heavy rain and strong winds forcing everyone to stay indoors."
Explanation
“Turn nasty” means to become angry, cruel, or unpleasant. It can describe people, situations, or even weather. For example, a friendly discussion can turn nasty if someone starts arguing harshly. Similarly, a calm storm can turn nasty with strong winds and heavy rain. This phrase is used in everyday conversation to warn or explain that something good or normal may suddenly become bad or aggressive.