There are no Knock-ons in soccer. You are thinking about rugby or touch.
A rugby player can deliberately knock the ball back, but he/she cannot deliberately knock it forward.
Its classes as a "Knock on"
There is no such thing as a down in rugby
When the ball drops FORWARD from a players hand.
A foul in which a player knocks the ball forward.
when a try is held up, when there is knock on
Knock You Down was created on 2009-04-07.
Knock Me Down was created on 1989-08-22.
A secondary or unintended effect of an action. I suspect it is a term taken from rugby.