see red
BECOME VERY ANGRY, become enraged, lose one's temper, go mad, go crazy, go wild, go bananas, hit the roof, go up the wall, fly off the handle, blow one's top, flip (one's lid), go ballistic, go spare, do one's nut, flip one's wig, blow one's lid/stack

[TahlilGaran] Dictionary of Contemporary English ▲

see red
to become very angry.
Some Internet customers are seeing red as a result of the new virus that slowed Web traffic last week.

[TahlilGaran] English Idioms Dictionary ▲

see red
to become very angry
My boss saw red when I told him that I would not be coming to work today.

My friend saw red last night when I told him about the broken dishes.

[TahlilGaran] English Idioms Dictionary ▲

see red
{v. phr.}, {informal} To become very angry.
Whenever anyone teased John about his weight, he saw red. /

[TahlilGaran] English Idioms Dictionary ▲