One brick short of a full load

From Fresh Dictionary

English

Adjective

one brick short of a full load

1. ((idiomatic{{#if:|, {{{2}}}{{#if:|, {{{3}}}{{#if:|, {{{4}}}{{#if:|, {{{5}}}{{#if:|, {{{6}}}{{#if:|, {{{7}}}{{#if:|, {{{8}}}{{#if:|, {{{9}}}}}}}}}}}}}}}}}}})) not mentally sound; insane

   I feel fine today, but that gentleman conversing with the house plant there may be one brick short of a full load.

2. ((idiomatic{{#if:|, {{{2}}}{{#if:|, {{{3}}}{{#if:|, {{{4}}}{{#if:|, {{{5}}}{{#if:|, {{{6}}}{{#if:|, {{{7}}}{{#if:|, {{{8}}}{{#if:|, {{{9}}}}}}}}}}}}}}}}}}})) stupid

   You have to be one brick short of a full load to think that '7' is a letter in the alphabet.

Translations

• Russian:башню снесло, без царя в голове, винтика в голове не хватает, котелок не варит, крыша поехала, не все дома
• Swedish: ha en skruv lös (have a loose screw)