When you cum underwater, during sea floor sex, just as you begin to lose consciousness from oxygen deprivation.
“Bro, I almost drown doing the gill arch yesterday”

Damnn I gotta try that”

“Yeah satisfied my choking and water kink
by A Siren July 6, 2022
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While your girl is puking her brains out in the toilet ( back arched and in full heave mode) you get behind and rail her in the ass. Every puke tightening the asshole up for full sexual enjoyment.
Stacy drank too much last night. She starting puking when we got home. This is a great time to enjoy the cat arch. Thrusting behind her every time she pukes her brains out.
by The Al Hole September 21, 2017
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A crossfit instructor renowned for forgetting to take a picture of the WOD board.
That guy is an arch hold
by Tehejs July 21, 2017
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A euphemism for a McDonalds fast food restaurant. It is a play on the phrase "Golden Arches."
You: Are you guys hungry?

Him: Yeah. Where do you want to eat?

Her: We don't have much time, so how about the Fallen Arches around the corner?
by Wikiman X June 25, 2009
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Person who is desperately in love with Halie.
Wow! I love my wife so much. You could say that I’m an Arch(ie).
by archluvshalie April 17, 2023
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