1. the hindmost part of something.
2. Informal.the buttocks; behind. Also called tail end.
Pronunciation: (rēr'end'), [key]
1. to drive a vehicle or other conveyance so as to strike the back end of (another vehicle): My car was rear-ended by another driver on the highway.
2. (of a moving vehicle or other conveyance) to strike the back end of (another vehicle or object): A freight train rear-ended the commuter train this morning.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.