a-pooh-stics Share definition Flag 1. The acoustics of a toilet.2. Really bad acoustics in a concert venue. Drunken Frat Boy: Dude.. I just took a dump, and it had realllllllllly bad a-pooh-stics a-pooh-stics by DingleBerry Fairly Fairy July 7, 2009 Get the a-pooh-stics mug.