English ⇄ Russian

too big for your boots stresses
	⇒ too big for your britches (US)
gen.	от скромности не умрёт (someone who is too big for their boots behaves as if they are more important or more clever than they really are: Since he was made team captain, he's been ordering us all around and generally getting much too big for his boots; He's been getting a bit too big for his boots since he got that promotion Taras); чересчур возомнивший о себе (Taras)