Source : WordNet®

peanut gallery
     n 1: (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"
     2: rearmost or uppermost area in the balcony containing the
        least expensive seats [syn: {second balcony}, {family
        circle}, {upper balcony}]