Question

How would you convey (make a picture) about
"Thinking of a taco" or "missing someone's taco"?
thank you. :)

Answer 1

Someone thinking about at taco in a thought bubble. 
Like, you can have half the fave at the bottom of the screen and have though bubbles coming up with the taco inside. 

This is call a mondegreen! often a misheard lyric. 

hope this helps. :)