Facebook Ninja
A Facebook Ninja is someone who sneaks into your account while you’re half-asleep, and changes your status to something ridiculous like 'I’m a vampire.' They do it while you’re getting coffee or taking a leak.
Your status changed to 'I’m a vampire' while you were in the bathroom.
Your status said 'I’m in jail' when you were just eating a sandwich.
Your status read 'I’m a unicorn' while you were napping.