Can you name the NFL Referee Signals

[Boutdatlife]

Can you name the NFL Referee Signals (Pictures)? by burlywood66 | Online Games & Trivia by Sporcle

 

[CaughtInTWebb]

I know a couple but damn....some of these I've never seen....

 

[We Ready]

I got 15 out of 20.

 

[concise]

this thing refused to pick up my answers for grounding and unsportsmanlike conduct and I spent half the time trying to make it work withdifferent phrases.
I only got 8