Here are the possible solutions for get stuck on mentally clue
Answer
Clue
Relevancy
fixate
Clue
Get stuck (on), mentally
Definition
to make stable
auto
Clue
One might get stuck in a jam
Definition
to ride in an automobile
baconpancakes
Clue
All-in-one breakfast foods popularized by a song from "Adventure Time" (having it instantly get stuck in your head will be your punishment for cheating and Googling it)