who would have thunk it , phrase : (colloquial, sometimes sarcastic) A rhetorical question used to express incredulity: who would have guessed it?; who would have thought that would happen?
Cibo e viaggi / Food and travel notes by Livio Acerbo

who would have thunk it , phrase : (colloquial, sometimes sarcastic) A rhetorical question used to express incredulity: who would have guessed it?; who would have thought that would happen?