decâ²iÂ·maâ²tion n. Usage Note: Decimate originally referred to the killing of every tenth person, a punishment used in the Roman army for mutinous legions. Today this meaning is commonly extended to include the killing of any large proportion of a population.
Why Do People Give in to Peer Pressure? Some kids give in to peer pressure because they want to be liked, to fit in, or because they worry that other kids might make fun of them if they don't go along with the group. Others go along because they are curious to try something new that others are doing.
Freebase(0.00 / 0 votes)Rate this definition: Peer pressure. Peer pressure is influence that a peer group, observers or individual exerts that encourages others to change their attitudes, values, or behaviors to conform to group norms. Social groups affected include membership groups, in which individuals are formally members, or social cliques in which membership is not clearly defined.