Slacks

Noun

plural

1. Plural of slack
2. (pluralonly) Casual trousers. (Takes a plural verb even when singular, may be referred to as a pair of slacks)
• 1957, J. D. Salinger, "Zooey", in, 1961, :Not five minutes later, Zooey, with his hair combed wet, stood wet, stood barefoot at the washbowl, wearing a pair of beltless dark-gray sharkskin slacks, a face towel across his bare shoulders.

Verb

1. slacks

   (third-person singular of slack)