Possibly a combination of two of the best things on the planet.
No... Actually, the combination of the ultimately sexiest woman on the planet (Megan Fox), and some other thing (Megatron) that has become cool just because Megan was in the same movie.
(2) n. Smoking hot.
(2) Guy #1: You see that chick on the beach? She's such a Megantron.
Guy #2: Are you stupid? Nobody matches the hotness of Foxy Megan.