Tesseroki

Tesseroki is the cargoship between Loki and tesseract from the Marvel Cinematic Universe fandom.

Canon
In Avengers (2012), Loki's first apparence in the movie is made by his arrival through the Tesseract which he takes short after.

In Avengers : Engame, due to the time travel of the Avengers, Hulk smashes the door of the stairs, throwing Tony Stark (future) with the case containing the Tesseract, which flies directly next to Loki's feet. Using this opportunity, Loki takes the Tesseract and escapes.

In the Loki TV serie, flollowing directly the scene in Avengers : Engame, Loki teleports himself into another country. In the first episode, after being taken by the TVA, he escapes the projection room and finds the person who took the Tesseract : Casey. He is seen later in the episode with the Tesseract playing with it, telling Mobius that he tried to flee with it but it didn't work since magic doesn't work in the TVA.

Fanon
Numerous fans have found Loki's little obsession with the Tesseract funny and decided to create a meme about it. He is often depicted in memes featuring choices to make and him preferring the side of the Tesseract.

Fandom
Tesseract in Tumblr