Word Study
pig-a-back
WORDNET DICTIONARY
Adverbial pig-a-back has 2 senses
- pig-a-back(r = adv.all) pickaback, piggyback - on a railroad flatcar; "the trailer rode piggyback across the country"
- pig-a-back(r = adv.all) pickaback, piggyback - on the back or shoulder or astraddle on the hip; "she carried her child piggyback"
For further exploring for "pig-a-back" in Webster Dictionary Online