I save the Princess I stomp on the Goomba

A direct quote from 'Mario evades the IRS' by Solid jj. References Mario, as well as tropes of various games in the Super Mario franchise (i.e rescuing Princess Peach from kidnappings, or jumping on Goombas to clear platforming challenges). Commonly used to refer to the simplicity of Mario as a concept, by implying the character exists simply to regularly fulfill these two tasks.

Mario's purpose is essentially "I save the Princess I stomp on the Goomba."