A glory hole also spelled gloryhole and glory-hole is a hole in a wall, or other partition, often between public lavatory cubicles or adult video arcade booths and lounges, for people to engage in sexual activity or observe the person in the next cubicle while one or both parties masturbate.
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A lushly wooded area between 73 rd and 78 th Streets, the Ramble was sort of Manhattan's answer to the Fire Island Meat Rack--a rustic retreat which became a real-life porn movie as guys grabbed each other and went for it. The partition maintains anonymity. This sandy area between two Fire Island communities—the Pines and the Grove—traditionally was more than just a convenient walking route between the two places. Glory holes are especially associated with gay male culture, and anal or oral sex,   but may also be used by bisexual or heterosexual men, or by men who do not identify as gay, bisexual, or heterosexual. Or they'd just go to the communal room and prepare to be mass-groped.
Or, they simply sat there and waited for someone else to stick their business in the slot. Gays went into these booths to carry on with strangers, and when they left, all moist and sticky, they weren't the least bit more literary than when they came in. Difference and the diversity of sexualities. But those days are as gone as some of the sand dunes.