Top definition
An unflushed turd that has rested calmly in a toilet bowl long enough to have developed a "halo" of discolored water.

The act of leaving such a turd, either intentionally or accidentally.
When Sally entered the stall, she gagged at sight of a sweater dog in the bowl.

The waitress finally figured out which customer was responsible for sweater dogging the men's room every Saturday morning.

Celeste hates being sweater dogged!
by Bertha FD April 28, 2015
Get the mug
Get a Sweater Dog mug for your buddy Manafort.