A speech disorder
There was once a man with a speech disorder. One day the man walks into a candy store and asks the clerk, "May I please have som bum?". The clerk replies, "Huh?". The man says "Can I please have some bum?" again. Understanding, the clerk says "Oh! You want some gum!" The clerk then gives the man the gum. Having purchased his gum, the man walks down the street into a hardware store and asks for a "fucket" The clerk, confused, says "What?" The man asks for a fucket again, the clerk realizes that he wants a bucket and gets him the bucket. The man now goes down the street and stops in a pet store. Spotting an employee, he asks for a cock and suck it. Pondering over what the man means, the clerk suddenly says, "Oh, you mean that you would like a Cockerspaniel!". When the man is walking down the street with his "bum" his "fucket" and his "cock and sucket", the Cockerspaniel runs off. Seeing an old lady, he asks her to "hold my bum and fucket while I go catch my cock and suck it".