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a combination of two military terms - a rack is a bed and stow is to put away or secure; together they mean put yourself to bed, to go to bed, or bedtime
Damn, it's already 0245! It's time for rack stow cos' I gotta be up at 0630.
by CreampieGuy July 16, 2011
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Nov 27 Word of the Day
A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.
That fucking smooth brain put his shirt on backwards again...

That smooth brain is dumber than a pile of shit.
by Tip Tank May 14, 2011
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