freakout

noun
UK /ˈfriːkaʊt/
US /ˈfriːkaʊt/

A freakout is when someone suddenly gets very upset or scared and loses control.

She had a total freakout when she saw the spider on her bed.


OTHER MEANINGS

2. A sudden strong reaction of excitement or worry about something.

The crowd's freakout over the surprise guest was loud and wild.

3. A moment when someone completely loses their calm and starts shouting or crying.

He had a freakout after losing his keys for the third time.

4. A very strong, uncontrolled reaction to a scary or surprising event.

The power outage caused a freakout in the office.