Truck-kun

Truck-kun is an Internet meme that refers to a common trope used in the isekai genre of anime, manga, and light novels, in which characters are transported to other worlds.

Early examples of discussion of the trope include a Reddit thread entitled "Trucks in Manga – RE: Marina" by user poloport from April 14, 2015.

[7] There are also alternative versions and parodies of the plot device, such as in KonoSuba, where lead character Kazuma Satou dies from shock after rescuing someone from being run over by what he thinks is a truck, but is later discovered to be a slow-moving tractor that posed no danger to the person he was attempting to save.

[8][9] Since the creation of the meme, people have retrospectively examined earlier series to see other uses of motor accidents in anime and manga.

Examples include Osamu Tezuka's sci-fi manga Astro Boy, in which Tobio Tenma is killed in a car accident at the beginning of the story, resulting in his father creating the robot Astro Boy in his image; as well as the anime series Magical Princess Minky Momo, in which Momo loses her powers and is killed by a truck late in the series before being reincarnated as a baby.

In the isekai genre, the idea of being sent to a new world by being killed by a truck became so common it turned into a meme.