1) Exempt from any punishment 2) Good way to get off 3) How some get off 4) How some may get off 5) Off the hook, completely 6) One way to get off 7) Totally unscathed 8) Unpunished 9) Untaxed or unharmed 10) Way to get off 11) With no adverse consequences 12) With no punishment at all 13) Without being punished 
• (a.) Free from payment of scot; untaxed; hence, unhurt; clear; safe.
Scot'-free' [ ?], adjective Free from payment of scot; untaxed; hence, unhurt; clear; safe. « Do as much for this purpose, and thou shalt pass scot-free .» Sir W. Scott. « Then young Hay escaped scot-free to Holland.» A. Lang. 
[adv] - free from harm or penalty
adverb free from harm or penalty; `he went scot-free`