A sexual encounter in which one individual is clearly "taking one for the team" to elevate his friends chance of getting laid. Or A sexual encounter derived purely from sympathy.
Jodi is a 40 year old woman who has 3 kids and works all the time she needs a mercy jump.

I know she's a little chubby, but can you give my girlfriend's sister a mercy jump.
by Rob Williams13 January 03, 2008
Top Definition
when one person offers to make fuck with another because the first person hasn't gotten any in a really long time; results from "feeling bad" about the other person not getting any
"I'm in the mood to give you a mercy jump. Time to break you out of that slump!"
by Eric Loy April 13, 2004
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.