The moment when you have an idea inside your head, but you have a hard time saying it out loud since you're finding the suitable word in your head. Usually happens when speaking your second/third/nth language.
Note: This is different than the speech disorder "stuttering". Word stroke can happen to anyone.
"You know Andy, I think this show is..."
"Is what, Ray?"
"Is...is..."
"?"
"I'M HAVING A WORD STROKE!"
When you lubricate your penis and your hand, wrap your lubricated hand around your penis, and move your hand up and down your penis, somewhat slowly, almost like giving your penis a massage until you ejaculate
When I get back home I'm going to stroke a load.