Q. How does a girl from Alabama know when her mom is on the rag?
A. She can taste it on her brother's cock.
Q. How does a girl from Alabama know when her mom is on the rag?
A. She can taste it on her brother's cock.
This joke plays on the stereotype of incest in Alabama. It suggests a disturbing and shocking scenario as the punchline, making light of a taboo subject through an absurd and graphic implication.