Jump off the deep end Meaning in English
expression
Definition
To suddenly lose control emotionally, act irrationally, or do something risky and extreme without thinking it through.
Usage & Nuances
Informal and idiomatic; often used to describe emotional outbursts or impulsive, risky actions. Not literal—does not mean physically jumping into water. Also used as 'go off the deep end.' Avoid in very formal writing.
Example Sentences
When he heard the news, he jumped off the deep end and started yelling.
basic
Try not to jump off the deep end during the meeting.
basic
He jumped off the deep end and quit his job without a backup plan.
basic
Don't jump off the deep end just because someone disagrees with you.
natural
She totally jumped off the deep end after the breakup.
natural
Sometimes you just have to take a risk and jump off the deep end.
natural