tail end

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The hindmost part.
• noun The very end; the conclusion.

from The Century Dictionary.

• noun The hind part or end of an animal, opposite the head; the tail: as, the tail-end of a worm.
• noun The tip of the tail; the tag: as, the tail-end of the fox is white.
• noun The end, finish, or termination; the fag-end; tailings: as, the tail-end of an entertainment, of a procession, or of a storm.
• noun plural Inferior corn separated from grain of a superior quality. Compare tailing, 3.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun The rear end of anything; of a person or animal, the butt, buttocks; hindquarters, rump.
• noun figuratively The last part of a period of time, event, or situation; the concluding or final part.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun any projection that resembles the tail of an animal
• noun the fleshy part of the human body that you sit on
• noun the time of the last part of something