"Yo, Matsuda!"
"Yeah L?"
"Why couldn't Jimmy go to the party?" L ate the cherry off his cake.
"I don't know. Why?"
"He didn't have any friends."
"That's not a joke."
"Why didn't jimmy have any friends?"
"Where the hell is Light? Go tell him your awful jokes."
"Light has been convicted of being Kira. He's gone now."
"Oh."
"Now answer my damn question Matsuda!"
"I don't know. Why didn't Jimmy have any friends?"
"Jimmy was a potato."
"Who even comes up with these?"
"What's red and is shaped like a pencil?"
"I don't know."
"A red pencil."
"What the hell?"
"Hey, Matsuda?"
"Yes L?"
"Why couldn't Jimmy ride a bike?"
"Oh my god. Why?"
"I already told you, idiot. Jimmy is a potato."
"Stawp!!!!"
"NEVER!!!!"

Bad joke L
Anti Joke L
I declare this a thing.