Meaning of overbuy

o•ver•buy

Pronunciation: (ō"vur-bī'), [key]
— v., -bought, -buy•ing.
—v.t.
  1. to purchase in excessive quantities.
  2. to buy on margin in excess of one's ability to provide added security in an emergency, as in a falling market.
—v.i.
  1. to buy regardless of one's needs or financial means.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.