I played a Protector Aasimar Barbarian named Krill who was a fairly average scholar who had decided studying wasn’t for him. He heard somebody talking about “Power Word Krill,” and decided that he wanted to learn how to do it. He would basically go along with the party on everything (sometimes a little too quickly, he was hard to kill and often forgot others were squishier), but was absolutely obsessed with finding Power Word Krill.
He was asked multiple times if he was instead looking for “Power Word Kill,” but he really wanted to summon a lot of small crustaceans on demand. Or maybe it would just summon a big one, he didn’t know and was fine with either situation.
I’m guessing A Christmas Story (1983).
A central theme is the main character Ralphie really wants a Red Ryder Carbine Action 200-shot Range Model air rifle for Christmas, but all the adults he expresses this to insist he’ll shoot his eye out.