Live Lacking

An expression usable by Xbox Live users meaning a gamer who doesn't currently have Xbox Live; usually resulting in angry friends.

Derrick: Why has Rick not been playing Halo 3 for the past four days with us?
Gerald: He's renting a new apartment, so he found paying for Live pointless.
Derrick: Ha, he better not be Live Lacking for long. He's ou best sniper.