Top definition
A statement to denote something strange or repulsive or unexpected that was just seen or brought up in conversation.
Guy 1: How was your day?
Guy 2: Pretty good, you?
*Group of naked older gentlemen run by*
Guy 2: So that's a thing
by Great Hopwood February 28, 2015
Get the mug
Get a So That's a Thing mug for your buddy Abdul.