What does "flusher" mean?

Agent noun of flush: one who flushes.

What is a synonym for "flusher"?

Common synonyms include: cleansing device, flush device, plumber, toilet operator.

noun

noun ·Rare ·Advanced level

Noun

1
Agent noun of flush: one who flushes. agent, form-of
"Be prepared for an increase in your water bill from the frequent flusher who likes the sound-and-water show at the pull of the handle."
2
The mechanical part of a toilet that causes the toilet bowl's contents to be sucked down the drain.
3
A worker for a political campaign who encourages voters to vote on Election Day. US
"Each flusher is typically paid $20 to $50. Fleets of cars, buses, and other vehicles are also at the ready to ferry voters to and from the polls."

"Be prepared for an increase in your water bill from the frequent flusher who likes the sound-and-water show at the pull of the handle."

From Middle English flusshere, equivalent to flush + -er.