To sleep during an online conversation. This can be due to the conversation taking place late at night, being really boring, and/or the person in question being tired or (more commonly) drunk.

The term can also be used when someone is being slow at responding, should you suspect that they have fallen asleep.
At 1:34 AM:

Mr A: "...so yeah, that's the end of that epic adventure story, what do you think about that?"
Mr A: "Hello?"
Mr A: "I'm totally wasting my time and effort on this conversation aren't I?"
Mr A: "YOU'RE A SHIT FRIEND!!!"

At 7:51 AM:

Dr B: "Woah, sorry man... I was totally asleep at the keys!"
by DrJonas February 16, 2010
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