Linking means the you are talking on a level but not dating.

To have sex on the regular / do sexuall stuff with.

In Super Smash Brothers on the Nintendo 64, when someone gets pummeled by Link.

The Link was thought to me a mythical creature only appearing in fables until a Late Night Lenny, in search of a new conspiracy theory, found The Link.

To connect with friends or people and chill.

To meet up or hang with people

to come thru

This term is normally used, when a boy and girl are talking to each other a lot and its obvious that they are going to go out soon. This defination is normally used in the UK.