The line comes from Ed, one of the three friends at the centre of Ed, Edd n Eddy, the Cartoon Network animated series that ran from 1999 to 2009 and built its comedy around the trio's schemes and Ed's childlike logic. Clipped from the show, the moment spread online as a short meme sound because Ed's proud, matter-of-fact delivery makes an otherwise gross line feel harmless and funny. It remains popular in edits and reaction videos where a single absurd quote can sell a joke without extra explanation.
About this sound
Ed from Ed, Edd n Eddy says he smells his fingers in this short cartoon meme clip, often dropped into edits for gross, awkward or silly moments.
This is Ed, the loud and simple-minded character from Ed, Edd n Eddy, delivering the line in his slow, goofy voice with a strange sense of pride, as if sniffing his fingers is a perfectly normal discovery. The delivery is flat, innocent and slightly unsettling, which is exactly why it lands as a joke. Listeners hear a childlike cartoon voice stating something gross without any embarrassment, and that mismatch between tone and subject makes the moment funny, awkward and instantly quotable in short videos.