The act of mumbling and slurring words simultaneously while speaking, resulting in a non-understandable statement.
Jamie: Hey, how's it going?
Hannah: Pretty good, actually; I just got a dubahbgdaboh...
Jamie: I'm sorry, what? You were gravy talking big time just then.
Say the obvious but in the weirdest accent
You are Watching football on tv
Gravy talk "Watching the football on tv are yas"
Been shopping
Gravy talk "Got yourself some new clothes have you"