Pronunciation: (boks'kär"), [key]
1. Railroads.a completely enclosed freight car.
2. boxcars,a pair of sixes on the first throw of the dice in the game of craps.
Informal.extremely or disproportionately large: The business had boxcar profits during its first year.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.