knock on

knock on (third-person singular simple present knocks on, present participle knocking on, simple past and past participle knocked on)

1. (transitive, intransitive, rugby) To commit a foul by knocking the ball forward.
   • 2011 October 1, Tom Fordyce, “Rugby World Cup 2011: England 16-12 Scotland”, in BBC Sport‎:

     It then took a desperate piece of defending from Ben Foden to deny Scotland a try in the left-hand corner, the full-back reaching out an arm to knock the ball from Simon Danielli's grasp, Nick de Luca knocking on with the line at his mercy.

• no-knock