Good Luck Chuck 

When you are the placeholder relationship partner that gets left so your ex can find their one true love. (Alternative would be good luck charlotte)

What happened to your ex?

Oh she's getting married to some other dude now.
Damn bro, you're the real life Good Luck Chuck.

Tell me about it.

Good Luck Chuck by Sergio Serna September 4, 2018

good luck chuck 

a shitty movie starring shitty actors Jessica Alba and Dane Cook

Marvin: Man, Jessica Alba is hot but that Good Luck Chuck movie was one putrid, steaming pile of donkey pheces.. someone really dropped the ball on that shitfest, god damnit
Wallace: yeah eh

good luck chuck by stanley mcpatterson November 24, 2007

Good Luck Chuck Syndrome 

is when after you finish dating someone, and their next bf/gf is the one they end up marrying. The syndrome mostly found amongst women and men in their 20's and 30's. This mostly occurs amongst hopeless romantics, and those that continually search for love.

"That poor girl, her ex boyfriend just got married. Thats the 5th one!.She has the Good Luck Chuck Syndrome!

Good Luck Chuck Syndrome by hopelessromantic24 February 4, 2010

Good Luck Chuck Syndrome 

When a movie contains a lot of nudity and/or sex and the leading lady is an extremely hot celebrity, but she is the only one in the movie that keeps all her clothes on.

Dude, did you see Knocked Up? It was awesome!!!

Yea, it was funny, but it had a total case of Good Luck Chuck Syndrome! I was hoping to see Katherine Heigl naked, but she was the only fully clothed woman in the movie!

Good Luck Chuck Syndrome by PsychoSexy August 21, 2008