Studious Maximus

The other day Sarah and I saw a car bearing the following image in window chalk:

These were our best attempts at cracking the code:

Sarah: "Stud...popcorn."

Emily: "Stud...dirty chef hat."

Sarah: "Stud...mushroom cloud."

Emily: "Stud...bucket of rocks."

Sarah: "Stud...fat broccoli."

Emily: "NAILED IT!"