I saw the panel you're talking about...it was amazing. Zoie Palmer is so freakin funny. She doesn't even have to try. She just steals all the panels with her one liners.
I know it’s been too long for this anwser, but I was confused too and I guess I figured it out, so here it is: Ana says that sometimes she would be “prancing around” with Bo’s clothes when she has the chance (because the weather is hot in california, she doesn’t wear them often). Then Zoie says “what does it look like when you prance?” They joke and I guess Ana sings a song with “prance” in the lyrics and Zoie is lost, but everyone seems to get it Hahahaha