Put it near the end of a cartoon reaction edit, right after the confession that prompts it, then follow it with You What and close the bit with My Leg.
Über diesen Sound
This is a three-second voice clip of Ed from Ed, Edd n Eddy saying he smells his fingers. His slow, dim-witted delivery makes the line feel goofy and awkward, like a joke that lands because it is so blunt and childish. It comes from the cartoon Ed, Edd n Eddy, where Ed's odd habits often turn a normal moment into something strange and funny.