chugger

plural chuggers

1. derogatoryinformalAn aggressive or invasive street fundraiser, especially a private contractor working on behalf of a charity.

   Seen by many as the scourge of shoppers, chuggers can be uncompromising in their pursuit of a slice of strangers' disposable income, yet provide a rich source of funds for charities.

   2003 March 9, Anushka Asthana, “Your money—or their life”, in The Observer

plural chuggers

1. One who chugs a drink, especially an alcoholic drink.
2. fishingA type of fish lure or fly that makes a popping or chugging sound when twitched.
3. A vehicle, train or boat with an engine that makes a chugging noise when running.
4. colloquialrail transportA heavy-duty locomotive whether electric, diesel, hybrid or steam-powered