Chew the foreskin
Variation of chew the fat. Used openly by gentiles or in secret by Jews to describe any non-kosher discussion. For example, how tasty Julia Louise-Dreyfus is, or why Palestinians could be considered human.
“Oy vey, Efrayim. That Elaine. Every time I watch Seinfeld, her tuckus makes me crazy.”
“Why chew the foreskin you shmuck? You’ve always been a meschugener.”
“Why chew the foreskin you shmuck? You’ve always been a meschugener.”