Top Definition
An often unintentionally dull Facebook update, no-one really understands why these exist, possibly to feel important and to feel that people are interested in someones insignificant life. These are often greeted with... Silence... That or another 'MundaneBooker' clicking the 'Like' button and creating a vicious circle.

Status ---> Read ---> Liked (Thus original 'Mundanebooker' feeling self worth) ---> Process begins again.
Tom is on it this weekend, rofl.

"Have you spoken to Tom, apparently he's on it this weekend."
"Yeah, he's back on Mundanebook again."

Further examples:-

Matt is playing computer games, lulz.

Ellie has a boyfriend :) :), z0mg.
by MBook October 06, 2011
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