The term 'Bull on a Glue Bottle' is a reference to the popular cartoon character Elmer Fudd, who is often depicted carrying a bottle of glue with a bull on it. Elmer is a fictional cartoon character created by Warner Bros. in 1940 and is best known for his speech impediment, which causes him to pronounce his 'L's' as 'W's'. He is also known for his catchphrase, 'Be vewy qwiet, I'm hunting wabbits!' Elmer is a lovable, yet bumbling, character who is often seen chasing Bugs Bunny.