me and natalya failed to launch...there just wasn't enough chemistry...you could say we had "failure to launch" because Urban Dictionary has a retarded need to have the exact wording of a definition present in the example.

Suzy: Ok, got my cell phone, keys, car, and purse. Good to go! Me and Mark are going to have so much fun!
*Ring Ring*
Hello?
Mark: Yeah, uh... I can't make it to the party. My mom broke her leg and I have to take her to the hospital. Sorry.
*Click*
Suzy: *calls her BFF*
Danielle, Mark is blowing off the party! *cry cry*
Danielle: Girl you just got a failure to launch.

molly i cant get hard because your to damn ugly. ther fore causing a "failure to launch"