Open English Wordnet
Nouns
(n)peanut gallery(figurative) people whose criticisms are regarded as irrelevant or insignificant (resembling uneducated people who throw peanuts on the stage to express displeasure with a performance)“he ignored complaints from the peanut gallery”
(n)second balcony, family circle, upper balcony, peanut galleryrearmost or uppermost area in the balcony containing the least expensive seats