[Sullivan,] John L.
Posted in WB Cartoon Companion on March 22, 2004
In Hare Force (Freleng, 1944) Bugs tricks the dog into preparing for a fistfight. As the dog ventures out into the cold night swinging and shadow boxing, Bugs, who is safe in the warm house, taunts him by asking “How’s the weather out there, John L.?”.
Bugs is referring to the great 19th century heavyweight boxing champion, John L. Sullivan, “the Boston Strong Boy” who even in the late 1940s was a well-remembered figure.