We all know him...

A person who stands out above everyone else, usually in a sarcastically negative way.

not a particual guy, just a guy that you can point to

A term used by Vinesauce Joel, a Swedish Vinesauce Twitch streamer when only a single person says they're either having sound or video issues, or when they suggest that something could be done in the game Joel is playing, but it actually can't be done.

A lone wolf who stands alone. Strong and reliable.

that one video where a guy shoves a jar up his ass and it breaks

When a girl has a history of getting with many men. She meets a guy, falls for him insanely quickly, and now insists she is a changed woman and no longer wants to sleep around.