TikTok users may have noticed the AS or Adult Swim Adult Swim Adult Swim (stylized as [adult swim] since 2003 and often abbreviated as [as]) is a prime time and late night programming block broadcast by the American basic cable channel Cartoon Network. https://en.wikipedia.org › wiki › Adult_Swim Adult Swim - Wikipedia trend on the popular social media platform. Many creative videos have this hashtag, featuring the old late-night program's iconic “bumps”.