A memory diffuser is a female who makes a man forget about his ex.
Brody: damn bro I miss my ex
Aaron: sound to me like you need a memory diffuser
A female that makes you forget about your past relationship.
Brody: man I wonder what my ex is doing right now.
Aaron: sounds like you need a memory diffuser man
Diffusion that does not diffuse
That bass trap looks a lot like a non-turbulent diffusion panel