Definition of sneakernet in US English:

sneakernet

noun

North American
Computing
informal
  • The transfer of data by physical as opposed to electronic means, especially by the passing of disks between users; the notional network created by this practice.

Origin

1980s; earliest use found in Data Communications. From sneaker + -net, with (humorous) allusion to the action of walking between desks, offices, etc.

Pronunciation

sneakernet

/ˈsniːkənɛt/