He generously and cleverly gives them two, one piggybacking on the other.
The phablet bet is as much about piggybacking on a new market as innovating on the iPhone.
How could Cardiff lose, they asked, when she was piggybacking on the tonal pleasures of established classical music?
an unauthorized tapping into another's connection with a public utility
Clandestine use of a neighbor's wireless Internet connection is an increasingly prevalent example of piggybacking.
The transport of loaded containers or semitrailers on railroad flatcars (1953+)
To originate or prosper with the help of something else: Aerobic dancing piggybacked on the jogging craze (1968+)
[fr the term for carrying someone, esp a child, on one's back, derived by folk etymology fr pick-a-back, of unknown origin]