To stick something in the pan. The process of becoming stuck to a pan. To be stuck to a pan. If you wish to be stuck to a pan, you must first stick it in the pan.
Brittany: "Hey did I tell you about my date with Brad?!"
Lucille: "About a million times. Please, stop talking about Brad."
Brittany: "So, we went out to the movies, and-"
Lucille: "Gosh, Brittany, STICK IT IN A MUFFIN ALREADY!"
An insult used in TransFormers series 1 episodeMore than Meets the Eye - wonderfully rude for a "U"-certificate swearword, plus it has definite "robot" connotations.