1 definition by Techno Dracula

Top Definition
It's your train of thought, which all goes to naught if what you end up with isn't what you sought.
"Shit yo, your brain train just derailed! That shit ain't germane to ANY topic" - said to someone whose conversation went from sleeping bags to whether it would hurt to be slapped in the face with a dick
by Techno Dracula January 28, 2009

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