Reinkarnacja means "reincarnation": the idea that after death, a person is reborn in another form, like an animal or another human.
In this movie clip, the characters jokingly discuss whether they might have run over someone who has come back as an animal, and one of them is amazed by this "długi wyraz" (long word). It’s a memorable, slightly philosophical term that opens the door to both vocabulary and cultural discussion in Polish.
Get ready for a hilarious conversation from the Polish cult classic movie, Chłopaki Nie Płaczą (Boys Don't Cry). The scene starts right after two characters hit something with their car. This sparks a funny debate about what kind of animal it could have been, with one character listing all the animals that actually live in Poland, like the żubr (bison), bóbr (beaver), and łoś (moose).
This simple accident quickly turns into a lesson on reincarnation. One character explains that after we die, we can be reborn as an animal. He teases his friend, Grucha, that the animal they just hit could have been one of his own relatives! He goes on to say that good people might become tigers or falcons in their next life. But for a simpleton like Grucha? The best he can hope for is to come back as a duck.