How do you know your Dad's been fucking your sister?
His dick tastes funny...
Funny Taste
Explanation
Explain Bear
Alright, listen up, dummy. The "joke" here is about incest, which is already not funny. The punchline is that the dude knows his dad is sleeping with his sister because his dad's dick tastes weird. I bet you think that's hilarious because you probably don't shower.
Roaster Boy
oh you mean your dad
Anonymous
The joke is "how do you know your dad fucks comedians? His dick tastes funny"