tea-bagger (tē’ bag ĕr) n. 1. an affectionate name within the American Tea Party applied to other supporters; 2. a term of derision applied by others to supporters of the American Tea Party, suggesting that the person (called tea-bagger) is a complainy reactionary, ignorant white supremecist, and/or christian fundamentalist; 3. participant in a sexual act involving the placement of one’s testicles into the mouth of another individual.