Anything Goes Meaning

(idiomatic) There are no rules or restrictions.

Example: 1934, Cole Porter - Anything Goes:
  In olden days a glimpse of stocking
  Was looked on as something shocking
  But now, Heaven knows,
  Anything goes.
1987, Guns N' Roses, Anything Goes:
  My way, your way, anything goes tonight!
2004, Charles Silverstein, Felice Picano, The Joy of Gay Sex: Fully Revised and Expanded Third Edition, page 228:
  […] fucking and sucking by providing an anything-goes atmosphere reminiscent of the wildest days of the baths.