Green’s Dictionary of Slang

gets n.

[abbr. getaway n. (2)]

(US Und.) an escape from prison.

1903
19101920193019401950196019701980
1989
[US]H. Hapgood Autobiog. of a Thief 302: Before long schemes began to form in my head to make my gets (escape).
[US]C. Hamilton Men of the Und. 322: Gets, An escape from prison.
[UK]J. Morton Lowspeak.