An ex who has become a fuck buddy where the only connection is sex. Not to be confused with friends with benefits as you're really not friends.
You: Hey you know that person I used to date a while back ago?
Friend: Yeah I thought you two broke up?
You: We did, but started having sex again like we're fuck buddies. I guess that makes them my ex-buddy, huh?
Friend: Yep sure does!
Friend: Yeah I thought you two broke up?
You: We did, but started having sex again like we're fuck buddies. I guess that makes them my ex-buddy, huh?
Friend: Yep sure does!
by XplicitX September 13, 2014

A particularly unattractive ex girlfriend or boyfriend who insists on hanging around you and making themselves the center of your attention. The etymological root word is "Cynosure", an object at the focal point of attention.
by neoma82 April 21, 2010

by Kat_bitch September 19, 2016

Ex-pectacles are the spectacles that your Ex will view your new flame with. An ex-partner will always think that your new partner is unattractive, which is explained by Ex-pectacles. This is similar to "beer goggles" but opposite!
Rani broke up with Raj months ago but thinks his new girlfriend is unattractive even when she is smoking hot! Rani must be using her Ex-pectacles.
by AxonL December 26, 2018

When your ex boyfriend/girlfriend seems to become extremely less attractive as soon as you stop dating him or her.
Yo have you seen Alexis? Because of the ex effect, she's gotten like a bajillion times uglier in the 14.6 seconds since I've broken up with her.
by PussWrangler October 28, 2013

by Napkins345 October 20, 2010

by Dr. Zeu April 18, 2010
