plural of pack animal

A quantity of a recreational drug sufficient to fill the bowl of a small pipe used to smoke it.

(idiomatic) To carry one or more handguns on one's person, especially in a concealed manner.

(computing) A hardware module containing RAM for use by another device.

plural of jet pack

plural of rocket pack

fanny pack (US), bum bag (Britain)

(idiomatic, slang) To perform anal sex.

plural of Duluth pack

(construction) A small, disposable aerosol can containing spray polyurethane foam (SPF) components.