German RäuberleiterHelping another person climb to an elevated position by offering them your hands as an improvised rung.

[One picture](https://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Human_Ladder.jpg/800px-Human_Ladder.jpg) really does say more than 1000 words in this case. The literal translation is "robber's ladder". Very popular with children and – going by the name – with robbers and burglars. The Wikipedia article on the German [Räuberleiter](https://de.wikipedia.org/wiki/R%C3%A4uberleiter) links to the French [courte echelle](https://fr.wikipedia.org/wiki/Courte_%C3%A9chelle) as the only other translation.