has a cow

Goes completely ballistic

To have a cow is to become extremely upset, agitated, or angry about something—an overreaction to a situation: Don't have a cow, it's just a small dent.

The phrase suggests someone losing composure over something relatively minor.

Popularized by Bart Simpson's catchphrase "Don't have a cow, man."

Related

hits the ceiling · loses it · blows up · flips out · flies off the handle · goes nuts · loses their mind · goes ape · goes ballistic · throws a tantrum · throws a fit · plays possum · cries wolf · chickens out

Opposites
emotional reaction intensity

has a cowkeeps one's cool

Remains calm despite provocation

takes it easy · goes with the flow · chills out · mellows out

emotional composure

has a cowbites one's tongue

Deliberately withholds a remark

holds it together

response proportionality

has a cowunderreacts

Responds with insufficient intensity

Family

has, having, cow, cows, cowherd, cowboy, cowgirl

Familiarity
Top 200,000
Profile
Known to kids · Timeless · Negative · Everyday, not technical · Rated G