árvíztűrő tükörfúrógép

Etymology
This nonsense word was coined by Pál Faklen in 1989 to create an easily remembered word which contains all the accented letters of the Hungarian language. There were several alternative phrases but this one caught on well and it is in widespread use in Hungary to test typefaces or text representation programs.

It contains all the Hungarian accents exactly once.

Noun

 * 1) flood-resistant mirror-drilling machine