Phrase
to put an already-eaten-from end of a piece of food into a shared dipping sauce
double dip
I'm so happy you came but please don't double dip! Get the yummy stuff on your chip once. It's rude to put it back in for more after you take a bite!
Phrase
give a person orders in an authoritarian tone
boss me around
Hey, I'll eat my noodles anyway I like. Who are you to boss me around as you sit there texting on your phone all night... now that is disrespectful!
Phrase
eat and talk with food showing in your mouth
talk with my mouth full
Well, at least I don't laugh and talk with my mouth full! Look at your friend over there... we don't need to see the food he's eating!