Flash game / browser help

Hi

Complete n00b here feel like a complete tool asking, and not sure how exactly to ask, so I will simply start from start. Here goes...

Ok, I sometimes play Internet games I know, shock horror ... but in one game in particular, being a flash game, people are able to freeze the screen, I assume by spam overload or something of the like .... now, I have a slight understanding of how this is being done. They are forcing the spam text via some type of macro or auto typer really fast, causing overload, I guess similar to the effect of a batch file but within the game, always to the point of the browser crashing completely.
Through conversation with friends in game, I have heard the mention of anti kick and anti freeze filters, which enables the person freezing the room not to freeze themselves ... not sure of the software/programming being used?
Now .... my question is:
Is it, or, would it, be possible to create a similar type of ..... ((ok this is where I am stuck)) .... file, script, or code maybe, to simulate what this anti freeze filter thing they are using does? to prevent their spam from making me freeze to the point of my browser crashing?
I know I have drawn out a short novel to ask a short question, but wasn't sure how else to ask.

 

Ok thank you.