When someone tries to include you in a "we" that you don't feel part of, the traditional response is "We? What do you mean, we? Do you have a turd in your pocket?" Translates as semi-funny emphatic rejection of false or forced collectivism. (My "do you have a mouse in your pocket?" is the cleaned-up version of the old rhetorical rejection of the false "we.")

Part of a sarcastic retort to someone who speaks in the plural form, when it's been commonly understood that they really mean it to be you.