a person, organization or country that is successful or in a stronger position than others, especially when they seem to have an unfair advantage （尤指不公正地）占上风者，占优势者；特权阶层 political leaders who support the interests of the overdog 支持特权阶层利益的政治领导人 The judge had a reputation as a champion of the overdog. 法官享有超支冠军的美誉。 This newspaper aims to defend the underdog and bite the ankle of the overdog. 该报纸旨在捍卫弱者并咬住弱者的脚踝。