Definitions for: Pickaback

[adv] on the back or shoulder or astraddle on the hip; "she carried her child piggyback"
[adv] on a railroad flatcar; "the trailer rode piggyback across the country"

Webster (1913) Definition: Pick"a*back`, adv.
On the back or shoulders; as, to ride pickback. [Written also
pickapack, pickback, and pickpack.]

A woman stooping to take a child pickaback. --R,Jefferies.

Synonyms: pig-a-back, piggyback