Definitions by Milhouse and Baldwang

Powerthrough 

The act of continuing intercourse after ejaculating until you ejaculate a second time.

"I didn't think i had it in me after the first round but poweredthrough and came up with an even bigger second round."

"I thought it would be a short performance but I pulled the powerthrough without her even knowing."

Powerthrough by Milhouse and Baldwang April 17, 2008