Oral sex and hand jobs are the most common types of gloryhole sex, though anal sex is also common. Open rooms in bathhouses with many gloryholes are called a sucktorium and often have a raised level on one side of the holes to allow everyone to stand.
They can be found in bathrooms in the stall wall, in private rooms found in adult bookstores, and in dark rooms and labyrinths in bathhouses.
A gloryhole is a hole made in a thin wall or other type of partition where a man can insert their penis for sexual stimulation by an anonymous person on the other side.