Definitions by YNW Melly's Bestfriend in law
Bestfriend in law
Your bestfriend's husband/wife or girlfriend/boyfriend. So if your bestfriend is cheating then you have 2. Also if your bestfriend has a celebrity crush and says they are married that's also your bestfriend in law.
Bestfriend in law by YNW Melly's Bestfriend in law January 12, 2020