Hussian Foreshadowing

Hussian Foreshadowing is like a Chekhov's gun, yet more extreme
The use of a minor detail or menial phrase to create a major plot development later on.
named after the creator of MSPA, Andrew Hussie, who uses this many times in his work

In Homestuck, a brand of cake mix one of the main characters dislikes becomes a interdimensional empire in an alternate universe, Hussian Foreshadowing at its finest.