In whatever condition something happens to be.
We bought this second hand coffee table as is. A new one would cost us an arm and a leg.
As is is a legal term used to disclaim some implied warranties for an item being sold. Certain types of implied warranties must be specifically disclaimed, such as the implied warranty of title. “As is” denotes that the seller is selling, and the buyer is buying an item in whatever condition it presently exists, and that the buyer is accepting the item “with all faults”, whether or not immediately apparent. This is the classic “buyer beware” situation, where the careful buyer should take the time to examine the item before accepting it, or obtain expert advice. More on Wikipedia.