Dr. Rabbit is Racist!
Dr Rabbit Is Racist! is perhaps Walrusguy's most well-known poop, and one of his early claims to fame. It is also one of the most famous Dr. Rabbit poops, inspiring countless other Dr. Rabbit poops, and originating/popularizing several common lines/jokes, as well as the common portrayal of Dr. Rabbit as an evil racist.
"Dr. Rabbit is Racist" is a prime example of Walrusguy's renowned sentence mixing skills. Aside from flash effects, the only source besides Dr. Rabbit's World Tour that the poop uses is "Chocolate Rain".