男腹黑大灰狼女呆萌小白兔
[nán fù hēi dà huī láng nǚ dāi méng xiăo bái tù]
A combination indicating contrast between sexes: 'He's a sinister-big-bad-wolf' (typically manipulative or having a darker side) and 'she's the naively cute little-white-rabbit.' Represents contrasting personalities within oneself or between relationships.