When a person or thing does something that is extremely efficient and/or Powerful
Or something that is generally Gil approved:
EG: Machine-Gunning, Being not gay, Helicoptering, Being generally Indestructable
When you have a lot of relationships with many guys but you never reachthe sex phase. Some of the included activities are: holding hands, kissing or eating lunch.
Guy 1: We usually kiss and watch Netflix with my friends
Guy 2: And are you gonna have sex with him?
Guy 1: No, we like to hold hands and eat at Barrio Escalante
Guy 2: Oh my god you are Gil Veging this guy
When one uses their sexual partners tears for lubrication when fisting their ass, normally, "a lap dance is so much better when a stripper is crying" by the Bloodhound Gang is playing in the background for ambiance.
Person one - yo, I just got gil-manhandled
Person two- wtf is that?
Person one- here, lemme show you