1. (noun) an unrestrained expression of emotion

• blowup
• effusion
• gush
• outburst

1. (noun) an unrestrained expression of emotion

• acting out
• cry
• explosion
• flare

1. (noun) an unrestrained expression of emotion

• expression
• manifestation
• reflection
• reflexion

1. (noun) an unrestrained expression of emotion

• blow a fuse
• blow one's stack
• blow up
• combust
• flip one's lid
• flip one's wig
• fly off the handle
• go ballistic
• have a fit
• have kittens
• hit the ceiling
• hit the roof
• lose one's temper
• throw a fit
• effuse
• effusive
• gushing
• gushy
• gush
• rave