n.[C]

1. 【美】四轮单马轻便马车；【英】双轮单马轻便马车
2. 【美】儿童车，婴儿车
3. 【俚】（尤指旧的）汽车

a.

1. 多臭虫的
2. 【俚】有精神病的；疯的
   go buggy

   发疯

n.

1. a small motor vehicle with an open top.
2. (also baby buggy) a light collapsible pushchair.
3. historical a light horse-drawn vehicle for one or two people.

adj.

1. infested with bugs.
2. N. Amer. informal mad.