concusterbation 

when a guy is masturbating and his hand slips off his penis and hits him in the head giving him a concussion

self explanatory " concusterbation"

concusterbation by chanchan14 May 5, 2011

Consterbation 

A person who conserves energy while masturbating so he or she can masturbate more later.

David focused on his consterbation carefully, anticipating many future masturbatory emissions in his not so distant future.

Consterbation by Squirrelywolf October 10, 2018

Consterbation 

Consternation brought on solely by ones own actions and self-inflicted misfortune.

Steve suffered terrible consterbation because he was too lazy to get his taxes done on time.

Consterbation by Gordon LP March 26, 2008