slacks has definitions from the field of clothing
[ noun ] (usually in the plural) pants for casual wear

Used in print

(Hampton Stone, The Man Who Looked Death...)

Dark gray sports_jacket , lighter gray slacks , pink flannel shirt , black silk necktie .

(Evan Esar, Humorous English; a guide to comic ,...)

`` '' Do you see that pretty girl standing next to the car with slacks on `` ?

'' I see the girl but I do n't see the car with slacks on `` '' .

Related terms

trousers plural