Poliisi is the Finnish word for police, and this elongated version turns that single word into a recognisable meme call. Rather than a real siren recording, the humour comes from a person holding the middle vowel until the warning sounds exaggerated and theatrical. The clip circulates on soundboards and in short edits where a stretched shout is funnier than an actual alarm. It stays useful because the meaning is clear even for viewers who do not speak Finnish, especially when paired with chases, flashing lights or a character realising they are in trouble.