The phrase "cartoon eyes" refers to exaggerated or unrealistic eyes drawn in a cartoon or animated style. They are often very big, colorful, and expressive, typically reflecting emotions or comedic effects. Full definition
An oversized pair of cartoon eyes set in the gallery wall reacts to the viewer's movements, turning the observer into the observed. (artlyst.com)
Not to mention a button with an icon looking like cartoon eyes that activates the sport exhaust, a little feature that merely makes the exhaust note more aggressive. (cnet.com)
Though the lights are still there, they were deemed insufficient, so Baxter got cartoon eyes on its screen. (inc.com)