A computer workstation or desk manufactured by Ikea. It is metal and wood and is modular in that Ikea provides extra shelves and drawers to expand and modify it.
My Jerker holds all three of my computers and is where I spend my time working at home.
The pain in a man's arm after masturbating for an extended period of time, usually in the elbow or wrist.
Person 1: Hey, you down to help me type this essay out? It's due-
Person 2: Can't, bud. I have Jerker's Joint. I need to get some rest.
Person 1: That's disgusting. Why would you tell me that?
Person 2: *puts dominant hand on P1's shoulder* Because my arm hurts.
Person 1: Is this what I think it is?
Person 2: Yes. Yes it is.
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.