The phrase "Look what I can do, Stuart" refers to a recurring comedic sketch featuring the character Stuart Larkin from the TV show Mad TV, played by Michael McDonald. In these sketches, Stuart, a quirky and often mischievous child, proudly shows off various antics and "tricks," often followed by his mother or others reacting humorously. The phrase is part of the catchphrase "Look what I can do!" that Stuart exclaims while demonstrating his antics

. The sketches typically revolve around Stuart's interactions with his mother and others, featuring his naive but confident behavior and the comedic situations that arise from it. The humor often comes from Stuart's unexpected or exaggerated actions and the reactions of the adults around him

. This character and catchphrase have become memorable in pop culture, with compilations and clips widely shared online, including on YouTube and TikTok

. The phrase is also referenced nostalgically by fans of the show