Strč prst skrz krk (listen ) is a Czech and Slovak tongue-twister meaning "stick your finger through your neck".
The sentence is well known for having a total absence of vowels. It is often used as an example of such phrase when learning Czech as a foreign language. Sometimes in the Czech Republic and Slovakia, the phrase is used to judge whether or not a particular person is drunk.
The phrase is also the subtitle of the Swiss newspaper La Distinction. [1]
There is an even longer phrase with no vowels in Czech language: "Prd krt skrz drn, zprv zhlt hrst zrn" ("A mole farted through grass, having swallowed a handful of grains"), though it relies on irregular and obsolete forms, whereas Strč prst skrz krk does not.