knee-high to a grasshopper

Adjective

 * 1)  short; especially relating to when the subject was a small child

Translations

 * Finnish: vaahtosammuttimen kokoinen
 * French:
 * German: drei Käse hoch
 * Italian: alto come un soldo di cacio
 * Polish: ledwo odrosnąć od ziemi
 * Russian:,  , метр в прыжке́