idioms english

1-Going around in circles; meaning of discussing somthing or trying to achieve something you do not make any progressbecause you keep going back to the same subjects or the same problems .
2- Behind the eight ball; the mean is in trouble in a weak or losing position.
3- Cat gotten my tongue; which mean, not seaking
4- monkey business; means, Silly, mischievous, or deceiful acts or behavior
5- Long in the tooth; means, old.