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1 definition by Jibber McJibberton

 
1.
A term meaning 'to lose consciousness' due to a person's over consumption of GHB. Minutes and/or, sometimes, hours later, they tend to regain consciousness and are, fully awake, cognizant of their environment.
She can't handle her G, honey, she's about to fall out.

or

We call Adrian "Fall Out Boy" as he is often falling out at every party.
by Jibber McJibberton July 06, 2010