IPA: //ˈbɔɪˌkɒtə//
KK: /ˈbɔɪˌkɑːtər/
A person who refuses to buy, use, or participate in something as a way to protest or show disapproval.
The boycotter joined the movement to protest against the company's unfair practices.
Boycotter is derived from the name 'Boycott', which originates from Charles Boycott, an English land agent in Ireland who was socially ostracized in 1880. The suffix '-er' indicates a person who performs an action. Therefore, a 'boycotter' is a person who engages in the act of boycotting, or refusing to participate in something as a form of protest.
Think of Charles Boycott, who was shunned by his community, leading to the term 'boycotter' for someone who refuses to support or participate in something as a protest.