An act when a young male has literaly nothing to do, and jerks-off. However since its an unscheduld jerk-off it will take longer, and he will most likly have to swtich arms at one point. Also during some point during the Boredom Jerk, a yawn may take place.
"There was nothing on tv last night so i had a Boredom Jerk. It took forever! I had to switch to my left arm because my right went into muscle failure. I almost didn't finish, I was getting really tired."