About the artist
Jeffy is a fictional puppet character from the online comedy series SuperMarioLogan (SML), created and voiced by Logan Thirtyacre. Presented as a childlike, mentally unstable puppet, Jeffy is one of the most popular recurring figures in the SML universe, appearing across countless sketch-style videos aimed at a young, internet-native audience.
Beyond the video sketches, the character has spun off comedic rap tracks such as «Wanna See My Pencil?» and «I Smack», which parody mainstream hip-hop while leaning into Jeffy's absurd, crude persona and catchphrases. These are internet-culture novelty songs rather than conventional music releases, built entirely around the character's exaggerated voice and running jokes from the series.
Jeffy's music sits at the intersection of YouTube sketch comedy and meme-driven rap parody. Its popularity comes from viral online audiences rather than traditional music-industry channels, and the character has become a recognizable piece of YouTube pop culture, spawning disstracks and spin-off content from fans and other creators.