When you're chatting to someone and they start boring you. You signal that you're bored by fidgetting with your mobile phone or your media player, cos that's more important!
Rudy: Yo, man, that Tess was trying hard to impress you last night! No one could stop her chatting yo!
Mike: Tell me about it, Rude. I had to check me text while she be chatting just to send her a bored signal!
Rudy: Man, that's harsh!
Mike: Yeh, but it do the trick. She wondered off a couple minutes later!