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свалять дурака stresses
gen.	mountebank; make a fool of oneself; be foolish (linton); get a screw loose
Gruzovik	commit a blunder
Игорь Миг	screw up; make a blunder
inf.	make a Judy of oneself
Makarov.	make an ass of oneself
proverb	shoot into the brown
scottish	daff
Игорь Миг, inf.	blow it

свалять дурака: 4 phrases in 2 subjects

General	2
Informal	2