Superliminal
A method of communication using grossly direct persuasion. The term was coined in the 12th season episode "New Kids on the Blecch" when Navy recruiter Lt. L. T. Smash shouted out a window telling Lenny and Carl to join the Navy. They did.
Note: The term is a play on the term subliminal, a term coined by perception psychology researcher Gustav Fechner in his Elemente der Psychophysik (1860) meaning just below the limits of conscious perception. It was popularized in a 1957 book entitled The Hidden Persuaders by Vance Packard, which claimed that subliminal presentation of products was being used to unconsciously sway consumers to purchase products.
Brilliant!