1.  peanut gallery(n = noun.group) - (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"
is a kind of people

2.  peanut gallery(n = noun.artifact) family circle, second balcony, upper balcony - rearmost or uppermost area in the balcony containing the least expensive seats;
is a kind of area
is a part of balcony

1.  The cheapest seats in a theater, being typically those farthest from the stage, as in the uppermost balcony. [PJC]

2.  In a television show for children, the section where visiting children sit as guests during the performance. [PJC]

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