1) Big at the box office 2) Doing big business 3) Enormously successful 4) Fabulous, to a theater critic 5) Great, box office-wise 6) Highly successful 7) Huge, at the box office 8) Like a dandy performance 9) Like a fab performance 10) Like a fab show 11) Like a showstopper 12) Like a super performance 1) Fab 2) Hit 3) Socko 
Boffo is an informal term meaning `very good`. In show business, boffo can mean a hit show, as in `boffo box office`. This use of the term is believed to have originated with the Hollywood trade magazine Variety. `Boffo` may also refer to: ...
Boffo is slang for very good; highly successful.
adjective resoundingly successful and popular; `for years he was a boffo box office certainty`