Sarah Silverman on NBC says her purse contents are "fun and pot and gum." Missing Noel Shepherd.This is a common thing celebrities and other popular people do. This answer is not meant to be taken literally. Silverman is kind of joking, but also kind of serious – there is an actual meaning here. What purpose do these non-literal statements serve?
If you aren't speaking literally, you can speak in terms of 100% pure unfiltered social vibrations, unconstrained by reality (or drug laws).
By speaking non-literally, she can say exactly what will be most popular, without worrying about whether it's true.
She's communicating that she knows what's popular, and approves, and is willing to play the part of complying with social expectations to please others.
"Fun" is something pretty much everyone approves of. "Pot" is popular with her fanbase. And "gum" is a silly answer, meaning she's not too serious, not too worried about important things. It means she won't disapprove of others who spend their time chewing gum or otherwise having unimportant lives.
What's actually in her purse? No one cares.