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сбрендить v stresses
gen.	lose one's wits (Anglophile); go off one's head (Anglophile); go off one's nut (Anglophile); go off one's chump (Anglophile); go off one's trolley (Anglophile); go off one's rocker (Anglophile)
Gruzovik, inf.	fib
idiom.	go bananas (о животных; в прош. вр.: 'We were on one side of the creek, the creature on the other and our horses went crazy. Roger's little horse just went bananas.' (Bob Gimlin in an interview to Seattle Post, 1985) -- Лошадка Роджера как будто сбрендила ART Vancouver)
inf.	become dejected; become depressed; become sluggish; fear; go crazy; make a blunder; miss; talk nonsense; be off one's rocker (Andrey Truhachev); be off your rocker (Andrey Truhachev); have bats in the belfry (Andrey Truhachev); be not right in the head (Andrey Truhachev); be bats (Andrey Truhachev); be batty in the brain (Andrey Truhachev); have a screw loose (Andrey Truhachev); be crazy (Andrey Truhachev); go bonkers (Andrey Truhachev); go cuckoo (Andrey Truhachev)
Makarov.	go haywire; haywire; lose one's marbles
slang	part one's mooring (delta)
сбрендивший prtc.
Игорь Миг	whack job
inf.	rogue (Побеdа)
slang	bonkers (Rust71)

сбрендить: 4 phrases in 3 subjects

General	1
Informal	2
Makarov	1