there's no law against something
there's no law against (something)
It is perfectly acceptable to (do something). Typically said in response to criticism of or a warning against some action. Why shouldn't I try to haggle with the waitress? There's no law against it. There's no law against returning something I've already worn. Stop trying to make me feel bad about it.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
there’s no ˈlaw against something(spoken) used to tell somebody who is criticizing you that you are not doing anything wrong: I’ll sing if I want to — there’s no law against it.
Farlex Partner Idioms Dictionary © Farlex 2017