Tautophrase

A tautophrase is a phrase or sentence that tautologically defines a term by repeating that term. The word was coined in 2006 by William Safire in The New York Times.
Examples include:

"Brexit means Brexit"
"Tomorrow is tomorrow"
"Rose is a rose is a rose is a rose"
"It is what it is"
"If it works, it works"
"Boys will be boys"
"A horse is a horse, of course, of course," the opening words of the Mister Ed theme song.
"A win is a win"
"A la guerre comme à la guerre" — A French phrase literally meaning "at war as at war", and figuratively roughly equivalent to the English phrase "All's fair in love and war"Qué será, será or Che será, será — English loan from Spanish and Italian respectively, meaning "Whatever will be, will be."
"Call a spade a spade"
"What will be, will be"
"Game is game"
"What's common is common."
"When I fool around, I don't fool around."
"A hole is a hole."