Pochemuchka

Meaning: A person — usually a child — who asks an endless stream of questions, one 'why?' after another, insatiably curious about everything.

Literally: Why-er

Origin: Russian почему ('why') + suffix -chka; an affectionate term for the relentlessly inquisitive.

More Russian untranslatable words

Razliubit To fall out of love — the process of ceasing to love someone you once loved, leaving behi…
Avos' A blind, hopeful trust that things will somehow work out on their own — leaving the outco…
Poshlost' Not merely the trashy, but the falsely important, falsely beautiful and falsely clever —…
Nadryv An uncontrolled outpouring of buried feeling, often strained past anything the person tru…
Yurodivy One who plays the fool deliberately as a religious act, and is therefore licensed to spea…
Khalyava Something good got for free and without effort — and, strictly, something you were never…

Colorful expressions from dozens of languages, with their word-for-word translations.

до посинения (do posineniya) To do something with extreme effort or persistence, usually futilely.
горе луковое (gore lukovoye) A person who is accident-prone, hapless, or bumbling; one who causes trouble by their own…
огород городить (ogorod gorodit') To start a laborious and pointless undertaking; to make a big fuss over nothing.

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