Dan Harmon weighs in on Rick & Morty's most viral moments

What's Dan Harmon's secret to creating viral moments in cult hits like Rick & Morty? He and co-creator Justin Roiland have license to "take this really dumb thing incredibly seriously."

Harmon, who sat for the interview dressed as Whistler's Mother, goes into the back stories of other memorable gags and catchphrases.

Related: Evil Morty Theme Song (Feewet Trap Remix)

Dan Harmon Breaks Down the Biggest 'Rick and Morty' Moments Ever (YouTube / GQ)