n.[C]

1. 虱子；羽虱
2. 【俚】卑鄙的家伙

vt.

1. 清除（虱子）
2. 搞糟；损坏

n.

1. (pl. lice)
   a small wingless parasitic insect which infests human skin and hair. [Pediculus humanus (see body louse, head louse).]
   ▸a related insect which lives on the skin of mammals or birds. [Orders Anoplura (sucking lice) and Mallophaga (biting lice).]
   ▸used in names of small invertebrates that parasitize aquatic animals or infest plants, e.g. fish louse.
2. (pl. louses)
   informal a contemptible person.

v.

1. (louse something up) informal spoil something.
2. archaic remove lice from.