They’re Trying Mucho Hard

(My coworker generally leaves before I do. This exchange takes place as he’s leaving.)

Coworker: “All right, that’s it. I’m out of here! I will see you, uh… mañana.”

Me: “Hasta mañana, Señor [Coworker]!”

Coworker: *laughs* “Muchos tacos to you! …That’s all I know, really.”