Floyd the mouse and Garfield are hanging out. Floyd sees Jon coming and runs away. Garfield tells a confused Jon to hop in his mouth.  (And Garfield was being sarcastic to Jon.)

This is about Garfield and Floyd the mouse (Garfield’s friend). Floyd see Jon Arbuckle coming and runs away with a ZIP.  Garfield has an idea where he is telling Jon to hop in his mouth.  And Jon is like “Huh?”

The “to him and to her” are in the comic because this is a card for Nanu and Grandpa (daddy’s parents).