HydroDalek's 'doin' originates from a short, catchy animation created by the artist HydroDalek, featuring a signature character performing a rhythmic, looping dance. Initially shared on platforms like YouTube and Twitter, the animation's smooth motion and infectious beat quickly turned it into a popular template for 'doin your mom' jokes or surrealist internet humor. It is widely used in the '21st Century Humor' style of editing, where the character's movements are synced to various sound effects or sped up for comedic effect. Today, it remains a staple for creators looking to express a specific brand of energetic or repetitive absurdity.