What does attention blocking mean?

attention blocking meaning in Urban Dictionary

when a person obstructs you, then unblocks you, and blocks you, and so on very quickly so that the right side of screen fills up with 'Scabby is on the web' 'Scabby is Offline' 'Scabby is Online' etc.often employed by attention-seeking losers who want to make it very apparent that you know they do not want to talk to them. naturally, these are generally these types of idiots they never realise that undermines the entire foundation and point of preventing somebody.