A small parasitic wingless insect of the order Psocodea. / (colloquial, dated, not usually used in plural form) A contemptible person; one who is deceitful or causes harm.

To remove lice from; to delouse.

simple past tense and past participle of louse

Third-person singular simple present indicative form of louse

(nonstandard unless used as a term of abuse) plural of louse

present participle of louse

(Britain, slang) To slack off; to be lazy or a parasite on others.

(idiomatic, colloquial) To mess up; to confuse; to put into a state of disorder.

crab louse, Pthirus pubis.

A parasitic insect, Pediculus humanus humanus (syn. Pediculus humanus corporis), that infests the body and clothes of humans and feeds on blood.