Probably the only meme that got old the very first day it was released. It refers to Tom Cruise's crazy Scientology video that got removed from YouTube with the text "This video is no longer available due to a copyright claim by Church of ScientologyInternational"
random dude: Tom Cruse sure is crazy eh?
noob: This comment is no longer available due to a copyright claim by Church of ScientologyInternational random dude: God damn, that meme got old yesterday
Used when you're away from your desk, but haven't gone far - If someone needs you, they should come and find you.
Usually used if there is a chance that you might need to render assistance to someone in a hurry, and your reason for being away is flexible and not so important that you can't leave it or even cancel it altogether.
"I'm awailable - just getting a snack from the kitchen."
"They should still be in the building - they said they were awailable. Probably just chatting with a friend."
"I'm getting some lunch. Seeing as you have that important call, consider me awailable if you need assistance, and I'll come help you out. I'll be down the hall."