One of the mysteries of the English language finally explained.
1‘Ron will hit the roof when he sees this’
be very angry, be furious, lose one's temper, go into a rage, breathe fire
go mad, go crazy, be hopping mad, be livid, go wild, go bananas, have a fit, blow one's top, blow a fuse, blow a gasket, do one's nut, go through the roof, go up the wall, go off the deep end, go ape, flip, flip one's lid, lose one's rag, be fit to be tied, go non-linear
British go spare, go crackers, get one's knickers in a twist
North American flip one's wig
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