A person of either gender who is beautiful in every way, especially their sense of humour and behaviour/ generosity to others as well as aesthetically, often (but not exclusively) with great legs. Originally derived from adjective 'stunning' referring to physical beauty, but wider usages expressing socio-political, comedic or moral approval have developed recently.
! Meera is such a stunner, i love everything about her!
2. Did you watch Made in Chelsea last night? Francis was on incredible form with his lines about Jesus, what a stunner!