Similar to: have face as long as a fiddle -- 愁眉苦脸

as fine as a fiddle: 精神饱满, 身体极好

[@more@]fiddle
n.小提琴, 无意识而不停地拨弄
vt.虚度时光, 拉小提琴
vi.拉小提琴, 瞎搞