So...is the term "extended arm bar" unclear?

[deecee]

Originally Posted by Kansas Ref

I worked a NF game with a ref who would hold up two hands with open palms and fingers spread apart at me when I was giving the ball for a throw in after a substitution. I presumed that was his way of telling me "OK, we now have 10 players in the game, go ahead and start throw-in." Later he told me that two hands up meant "stop/pause", I told him that his mechanic was confusing.

If 2 hands up means go ahead to you and is confusing then there isn't much to say is there. It's also used since it's 3 man and you want both to show both partners, "hey hold up"