/ ˈpɪgibæk; NAmE / noun , verb
■ noun
a ride on sb's back, while he or she is walking :
Give me a piggyback, Daddy!
a piggyback ride
► pig·gy·back adverb :
to ride piggyback
■ verb
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PHRASAL VERBS
- piggyback on sb/sth
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WORD ORIGIN
mid 16th cent. (as an adverb): the word's origins are uncertain.