• Rickrolling – A phenomenon involving posting a URL in an Internet forum that appears to be relevant to the topic at hand, but is, in fact, a link to a video of Rick Astley's "Never Gonna Give You Up". The practice originated on 4chan as a "Duckroll", in which an image of a duck on wheels was what was linked to. The practice of Rickrolling became popular after April Fools' Day in 2008 when YouTube rigged every feature video on its home page to Rick Astley's song.^[277][278]
• Shreds – A series of mock videos, initially created by Santeri Ojala a.k.a. StSanders. The original videos show footage of famous rock guitarists and/or bands in their "shredding" moments, but feature Ojala's own purposely warped, yet precisely synchronized, guitar playing in place of the original audio.^[279][280]
• Star Wars Kid – A Québécois teenager became known as the "Star Wars Kid" after a video appeared on the Internet showing him swinging a golf ball retriever as if it were alightsaber. Many parodies of the video were also made and circulated.^[151][281]
• Supercuts – Videos consisting of numerous clips from movies and television typically highlighting the reuse of a common phrase or trope within each clip. Such can be specific to a show (such as highlighting every swear stated in the film The Big Lebowski), an oft-quoted line (numerous reality television show contestants saying they're not played to make friends) or as non-verbal critique of a specific medium (reuse of similar dialog lines throughout shows created by Aaron Sorkin).^[282][283]
• "This is my story" – A two-part video of 18-year-old American Internet personality Ben Breedlove, explaining about his heart condition, using note cards as a visual aid. The YouTube video was released on 18 December 2011, a week prior to Breedlove's death, and received world-wide attention.^[284]
• Tourettes Guy – A series of videos featuring an apparent Tourette's syndrome sufferer by the name of "Danny" and several events in his daily life, including many interactions with his son, who always remains behind the camera. In 2007, it was reported that Danny had died; however, a video released of him in 2008 disproved this.^[285]
• Twin Baby Boys Having a Conversation – A video of 17-month-old twin boys, Sam and Ren, having a "conversation" in their own special "language" was posted to YouTube by their mother and viewed by thousands of people in the next 24 hours.^[286][287]
• "Ty kto takoy? Davay, do svidaniya!" ("Who are you? Come on, goodbye!" in Russian) – A video of Azerbaijani meykhanaperformers, that gained over 2 million views on YouTube.^[288] The jingle "Ty kto takoy? Davay, do svidaniya!" started trending onTwitter with the Russian hashtag #путинтыктотакойдавайдосвидания^[289] and a number of songs sampled the jingle since then.
• Tyson – Videos featuring a skateboarding bulldog.^[290]
• UFO Phil – A series of music videos and short films featuring cult celebrity UFO Phil, whose real name is Phil Hill. Phil is an American novelty songwriter most notable for appearing with George Noory on the radio program Coast to Coast AM.^[291][292]
• Very erotic very violent – An Internet catchphrase in the People's Republic of China, after a report by Xinwen Lianbo, the most viewed of China's state-sponsored news programs, where a young girl was reported to have come across content on the Internet which was "very erotic, very violent". This incident sparked wide forms of parody on the Internet, and also questioned the credibility of the state broadcaster's newscasts.^{[293][294][295]}