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4. rear end
When you back into an object with a vehicle.
Hey, dude you just rear end that Lotus Elise behind you?
1. rear end
someone's part of body they sit on; butt.
Look at that girls big rear end.
2. rear end
To have sex such that the partner is positioned from behind.
A girl bragging to her friends: "I got rear ended by my boyfriend last night. It was exciting!"
3. rear end
1. the posterior end of something

2. the buttocks

3. for one car to back into another
Ow, my rear end just got hit.
5. rear end
at the very end of something; such as a line.
I hate being at the rear end of a line.
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