Premature ejerkulation 

the term for when you come much faster than you had anticipated while masturbating.

Man: Damn, I came right after i turned on the porno... I have a problem with premature ejerkulation

Premature ejerkulation by BGSG March 4, 2009

Premature ejerkulation 

A thing in which a person may become a douchebag before his/her time.

Man that guy has an obvious case of premature ejerkulation.

Premature ejerkulation by Espalado Motonegrodamis March 8, 2012

Premature ejokulation 

The act of laughing at your own joke prior to delivering the punch line.

david letterman committed premature ejokulation last night.

dude thinks his jokes are so funny he prematurely ejokulates.

Premature ejokulation by spencedog April 11, 2009

premature ejockulation

Living out your unaccomplished goals of being a sports superstar by forcing your children to play sports they are either too young to play or suck at playing.

I love Jim and Jenny to death, but little Timmy has no business being out on that field. This is a classic case of premature ejockulation.

premature ejockulation by Dr. Tanglewood March 19, 2015

Premature Ejokulation 

Attempting to make a joke before all the key parts that are necessary to make the joke funny are there; often with the hope that the missing parts will form by the time they are required.

Person 1: That was uncool.
Person 2: What's uncool is your... ... um... damn, premature ejokulation.

Premature Ejokulation by dh718 March 26, 2010