Top Definition
A tractor trailer, or set of trailers that hauls sand or gravel and dumps via neumatic gates underneath. Bottom dumps are usualy driven by the dumbest truck drivers a company can find (i.e. niggers, ragheads, tooth-less okies and mexicans.)
That bottom dump just threw a rock on my wind shield.
by Transfer Matt November 11, 2006

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×