The word "dad" is a palindrome that can be slang for mister.
A slang palindrome for "mister" would be "revver," which is a reversed version of the original word.
bub
bub
Mr. Palindrome could be shortened to "Mr. Pali."
A slang term for 'mister' is the palindrome 'bub'.
Otto Bob Bub (slang for 'Mister') Dad (slang for 'father') Pop (slang for 'father')
bub
bub
A palindrome for a slang term for a dumb person could be "dim mid."
Stats
gag