This occurs when someone on your buddy list, who used to be a friend, was never deleted from the list. You mean to click the video chat icon next to your friend's name, but accidentally click the used-to-be friend's name. You immediately cancel the invitation and block the person, to prevent the incident from re-occurring.
Alexa: Shit! I just accidentally invited Kyle to a video chat and then canceled it immediately. Now I have to block him so that never happens again!
Jacob: Haha I just got the accidental videochat block from John. I havent talked to him in months and he invited me to a video chat, canceled a second later, and then blocked me.
One who is always busy in a video chat when logged onto iChat/Skype/Oovoo. Most of these video chats consist of long periods of silence; nevertheless, they always have to be on video chat because their eagerness to virtually socialize instantly, is equivalent to a teenagers crackberry addiction.
I have to show Doug a new Xbox360 game I got on iChat, but he is in a video chat with somebody else. Damn doesn't he ever take a break? He is such a videochat whore. If he keeps whoring around on video chat he might catch a virtual STD.