винтиков в голове не хватает

• ВИНТИКОВ <ВИНТИКА, ШАРИКОВ, ЗАКЛЕПОК, ЗАКЛЕПКИ, КЛЕПОК, КЛЕПКИ> (в ГОЛОВЕ) НЕ ХВАТАЕТ (НЕДОСТАЕТ) у кого all highly coll

[VP; impers]

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⇒ s.o. is dense, slow-witted, acts strangely, as if he is slightly insane:

- у X-a винтиков не хватает{{}}≈ X has a screw <a few screws> loose;

- X has bats in his belfry;

- X (acts as if he) has lost his marbles;

- X is a bit cracked (touched in the head);

- [in limited contexts] X is off his rocker;

- X has gone batty.

     ♦ У неё, как казалось Михаилу, и раньше кое-каких винтиков недоставало, а после смерти мужа она и совсем ослабла головой (Абрамов 1). Mikhail vaguely remembered that she had always had a few screws loose, but that after her husband's death she had gone quite weak in the head (1a).

     ♦ Почему ты моешь посуду шампунем? У тебя что, винтиков в голове не хватает? Why are you washing the dishes with shampoo? Have you lost your marbles?