Green’s Dictionary of Slang
pork chop at a Jewish wedding phr.[the prohibition on pork in orthodox Judaism]
[1930s+] used in various phrs. below.
as popular as a pork chop at a Jewish wedding as useless as a pork chop at a Jewish wedding (also as useless as a slice of bacon at a Jewish wedding)
irrelevant, superfluous, useless.as welcome as a pork chop at a Jewish wedding
unwelcome, completely superfluous or unwanted.go down like a pork chop at a Jewish wedding
to make a gross social faux pas, to behave inappropriately.in more strife than a pork chop at a synagogue (also in more strife than a pregnant nun)
(Aus.) in very great difficulties, in a most embarrassing situation.like a pork chop at a Jewish wedding