noun
Etymology: Middle English tailende, from tail + ende end — more at end
1. : rump , behind , buttocks
sitting around the house on his tail end — Shirley A. Grau
2. : the hindmost end : the part opposite to the head or inferior to the rest
watched the tail end of the company move out — James Jones
3. : the concluding period
the tail end of a cabinet meeting — A.M.Schlesinger b. 1917
4. : tail 9b