骑着猪闯天下
[qí zhe zhū chuăng tiān xià]
Literal meaning is 'Riding a pig to conquer the world.' It uses humorously exaggerated imagery to express ambition. There's also a cultural saying in China - if you're lucky enough (usually unexpected good luck), even riding a pig would feel like riding on a high-speed vehicle. Thus it implies pursuing ambitions while enjoying the ride despite challenges.