Swiper, no swiping is the signature warning from Dora the Explorer, the Nickelodeon animated series that premiered in 2000. In the show, the sneaky fox Swiper tries to swipe items belonging to Dora and Boots, and Dora turns to the audience to repeat the phrase, usually three times, until he gives up and says oh, man. The line became one of the most quoted moments from children's television of the 2000s, later resurfacing in nostalgia edits, reaction videos and TikTok memes where adults reuse it to call out stealing, cheating or bad behaviour with a playful, instantly understood reference.