someone who intentionally throws up a vague Facebook status update, that prompts friends to ask what's going on, or is possibly a cry for help.
...don't be one.
Crystal is: "wondering if it is all worth it"
Mark is: "regretting last night"
"Have you talked to Mark? He's vaguebooking again."
"Yeah dude, did you see what Matt put? He is such a Vaguebooker!"
A person who practices vaguebooking on Facebook.
Jane's Facebook Status: OMG, I just give up!
Comment: Are you vaguebooking to get attention?