Peanut gallery (Slang)


Piccionaia (Slang)


Examples
I love theater, but unfortunately I can afford only the peanut gallery
Adoro il teatro, ma quando ci vado posso permettermi solo la piccionaia

All the insiders know that the most demanding public is the one in the peanut gallery
Tutti gli addetti ai lavori sanno che il pubblico in piccionaia è il più esigente

Origin
"In many theaters, peanuts and popcorn were sold only to the people in the least expensive seats, usually those in the rear of the balcony, hence the nickname" (Urdang, 172)