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тоска зелёная stresses
gen.	black dog; a crashing bore (Anglophile); borefest (Alexey Lebedev); as dry as dust; utter boredom (Anglophile); boredom to death (atheistd); the black dog
Игорь Миг	tedium
idiom.	as dull as ditch water
inf.	dumps; snoozefest (VLZ_58); snore-fest (VLZ_58)
Makarov.	as dull as ditch-water
proverb	as dull as ditch-water
slang	drag; be bored off one's tits (меня одолевает ~ – i'm bored off my tits Баян)

тоска зелёная: 6 phrases in 3 subjects

General	2
Informal	2
Slang	2