Sans comes from Undertale, the 2015 role-playing game created by Toby Fox, where the skeleton is known for lazy jokes, fourth-wall awareness and a surprisingly difficult boss fight. The title Sans-ation plays on his name and the word sensation, a naming style that spread easily across soundboards and meme pages. Clips tied to Sans are shared because a short cue can reference both his comedy and his menace at once, which keeps the sound useful for fan edits, reaction videos and gaming jokes long after the game launched.