What does Bunberry mean?

Bunberry meaning in Urban Dictionary

verb. Inventing a reason to avoid obligations (including supper functions with insufferable aunts). esp. a justification that involves traveletymology: within the need for becoming Ernest by Oscar Wilde the type at first labeled as "Algernon" invents a friend known as "Bunberry" that is an invalid plagued by sporadic, inexplicable disease, and who Algernon visits regularly.