When you stare so hard at someone that you might as well have been insde them.

A tourist to sub-orbital or orbital space, through commercial space flight programs.

When you and someone else are looking at each other like you want to have wild sex.

A more intense/seductive version of eye flirting. You find this person extremley attractive and you want to tear them apart right now. Could also be undressing with your eyes.
Licking of the lips may occur.

where some one staring at you really hard

The literal word for a person from across a room or even right next to you, literally looking at you in a piercing, pressuring way. Most of the time it is to make you feel intimidated, but it can mean the exact opposite of a person that likes you. This is a very complicating movement due to its many definitions that have opposite meaning therefore, it’s a very awkward situation if you are caught “eye fucking” someone.

when one inserts an object, most commonly a penis, into another person's eye socket. hopefully the person has a glass so it can be taken out before the eye fucking. if not, oh well, shit happens.