Attached or appended to something larger or more important.
On somebody's back or shoulders.
Pertaining to transportation of goods where one transportation unit is carried on the back of something else. For example, a truck on a train.
noun
(countable) A ride on somebody's back or shoulders.
(medicine, countable, uncountable) The connection of one intravenous drip to another.
An act or instance of piggybacking.
verb
(transitive) To carry (someone) on the back or shoulders.
(transitive) To enter a secured area at the same time along with someone having authorized access; to tailgate
(transitive) To transport (a lorry/truck) on a flatbed railway waggon
(transitive, Internet) To obtain a wireless internet connection by bringing one's own computer within the range of another's wireless connection without that subscriber's permission or knowledge.
(transitive, Internet) To utilize "last-mile" wiring rented from a larger owner ISP by a smaller ISP.
(transitive, intransitive) To attach or append something to another (usually larger) object or event.
