'Master of Your Domain'
"The Contest": Season 4 Episode 11
This phrase was the crux of what became the most beloved and critically acclaimed Seinfeld episode ever. The plot: Four adults bet who can hold out from masturbating the longest. Spoiler alert: none of them win, but the competition did give us this most memorable of phrases. Being "master of your domain" isn't just about abstaining from self-pleasure; the term has become a metaphor from restraining yourself against any desire, whether its in a contest setting or not. The phrase had a clever callback in "The Puffy Shirt," when we learn of a hand model that became infatuated with himself and was not "master of his domain."