Having ingested enough GHB to put one in a trance-like, semi-aquatic state of disillusionedunresponsiveness as if one had fallen into a hole and could not get out.
"He was so against me doing butt stuff to him, but his toes curled when I touched his g-hole"
"When she grazed his g-hole with her finger, he went wild"
Slang noun: A mental state that video or MMORP game players enter that has them play a game for several hours ignoring all other responsibilties except food, work( if applicable), or bodily functions.
When someone has taken too much of a drug Ghb and it makes them sleep (go on concious)
They normally go in and out of consciousness and its this that is them going into a g hole. Probably derived from K hole.