flatten out

• Audio (AU)

  (file)

flatten out (third-person singular simple present flattens out, present participle flattening out, simple past and past participle flattened out)

1. To make flat (something rough, folded or bumpy).
2. (idiomatic, of a hierarchy or inequal distribution) To become more even.
3. (slang) To win a fight, usually by punching someone until they are knocked over