A slang term used to discreetly refer to a man's erection. The owner of the Jim may or may not realize he's standing at attention - you can either try to save his dignity or point and laugh. The term is often used in the company of women or others that are not privy to its true meaning.
Jimbo, my brother, I tried to save you! ...When you left that room, you had the most obvious Jim I've ever seen. You almost smacked poor Kate in the face with it!
A generic nickname used to give to a person of the male gender. Used commonly in hipster circles, mostly back in the '60s and '70s. See Marlon Wayans' character's usage of it in Requiem for a Dream for a good example.
the perfect man. A Jim enjoys coffee, beer, cigarettes, and killing Nazi zombies. He knows how to use a sword, namely, Sting. He is handsome, loyal, romantic, talented, old, and genuine. He has an awesome girlfriend who loves him more than anything in the world.
"Dude, Jim's girlfriend is awesome!"
"I know! She must be a Charlotte."