thin person, skinny person
我们家基因就是瘦子
Everyone in my family is naturally skinny.
— SoulMate (2016)
一个瘦子医生，一个胖子医生
A thin doctor and a fat doctor.
— 摩托日记 (2004)
瘦子，你来照顾马匹
Skinny, you take care of the horses.
— 黄金三镖客 (1966)