I heard from St Paul AB local that the pejorative is ‘chuggers’, a la the listerine thing.

Bemusing as in the UK a ‘chugger’ is a ‘charity mugger’- one of those annoying young charity street interceptors wanting you to sponsor poor waifs around the world, usually something like ‘Plan Canada’ Africa blathering all about ‘giving girls and women a chance’. I usually decline saying that’s sexist, or that they are wasting their time doing it in African countries with Islamic governments.