ежу понятно

Category: Conversational RussianRussian idioms

[ye-ZHU pa-NYAT-na]

Translation:

it’s obvious, it’s clear
(lit. – it’s clear to a hedgehog)

Comments:

This praseologism was given to us by Mayakovsky in 1925, who wrote the folowing lines:

Я́сно да́же и ежу́ — Э́тот Пе́тя был буржу́й.

It's clear even to a hedgehog - This Petya was a bourgeois.

Learn more about this and simular expressions here: Ежу понятно