The generic Hungarian word for trash cans, 'kuka', unexpectedly originates from the names of German industrialists Johann Josef Keller and Jakob Knappich.

The story is quite involved, to the extent that one would be tempted to dismiss it as a folk etymology, if it wasn't ridiculously well-attested.

Keller and Knappich founded an acetylene factory in Augsburg, Bavaria in 1898. They named it Keller und Knappich Augsburg (KUKA).

Their venture quickly expanded into manufacturing of welding equipment, household appliances, and eventually car parts and heavy industrial robots. In the 1920s, they manufactured hoppers for Hungarian municipal garbage trucks, which they stamped prominently with their logo.

This led to refuse trucks being known colloquially referred to as "kukás auto" (lit. "car with KUKA written on it"), even long after KUKA stopped manufacturing those hoppers. And the noun kuka, referring to trash cans, arose as a backformation from there! And this is how two German industrialist gave their names to Hungarian trash cans. Of course, it probably helped that a word kuka existed in the Hungarian language already at that point (as an unrelated adjective referring to a mute person), much like snowflake existed before Snow and Flake founded the town.