No Limit Texas Hold 'em:

When all players at the felt (at least 5, the majority of seats at the table) hold non-connected, unpaired, off-suited hole cards below a 10, and go all-in pre-flop. Absolute financial mass suicide and a true pleasure to behold. Of course, there will be only one lucky/unlucky survivor to the culling.
The Official Heaven's Gate Madness Chant:

Mirror, mirror on the wall,
No one needs to fucking call,
I don't need no 10 or better,
Only pussies live forever,
I don't need no pocket rockets,
We can all go live in the comet!
by Bodacious77 April 23, 2019
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In 90's there was a cult that thought they were going to get taken into the heavens in a space ship. Several of them got castrated to help them clear their mind, 'cause no one does those kinds of things in heaven. Once a room was found with 30 Heaven's Gate members who had commited suicide. They thought they were leaving their bodies so they could get into the spaceship, which was behind some comet that had happened to show up.

They claim to be Christian, but they're a cult, and no one is quite sure what they believe anymore. There's a lot of information about them online and wikipedia will link you to their official website as well.
Poor Sod: I'm lost, confused, self deprivating, and desperate. I should go join Heaven's Gate Cult! A cult would fill the void!
by Dr. Batido December 15, 2005
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A threesome with one man and two women. One woman ride's the guy's erect penis, the other woman receives oral pleasure while sitting on the guy's face, and the two women grab onto each other's shoulders for support.
Hello, ladies! Say, how would you two angels like to come back to my place for some Heaven's Gate action?
by beknighted September 27, 2018
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A period of time just before climax.
Damn, her pussy was so tight she had me at heaven's gate in 6 seconds.
by January 20, 2021
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