Baby shower outfit! Should I?

Amber
I'm having a coed, outdoor baby shower. And I don't really want to get all dressed up! I just want to be cozy and casual! And I am considering ordering this shirt to wear for the event...and it's kind of perfect because my SO has been known to frequently moon his friends and family lol! Like father like son right?! Anyway, is it too tacky? I find it hilarious 😜💙