look up any word, like bangarang:
 
1.
A "domain name" that has been dropped by it’s prior register. Then caught by someone who finds it on an expired list or an expired domain name auction.

There are many Expired name lists and Expired domain name auctions on the web at this time that deal with DropCatch on a daily basis.
"That was one Great DropCatch."
"How can a simple user compete with big biz in the DropCatch Industry"
by Jim Daily October 30, 2006