exclamation
1. The act of disappearing for an indeterminate amount of time with little to no warning.
2. Disappearing without a trace and possibly not returning.
Person 1: Where did <insert name here> just go?
Person 2: ehhh, they're probably pulling a Xander.
Not knowing how to talk to females/Not knowing how to act like a human/Not able to take blame for their problems.
"There he goes, Pulling a Xander, like always."
someone is "pulling a xander" when they are being abnormally horny and/or weird
"Alanna was being horny as hell earlier, it was weird"
"You know she was just pulling a Xander"