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To avoid, at all cost, any situation that might remotely result in a failure on your, and your liabilities, part.
Example 1:

Stan: "Hey man, let's go to the mall, I want to get something to eat."

Sami: "Nah man, you're only hungry because you have post-high munchies. We should wait at my house before we go out anywhere. Plus, I have some Doritos at home you can munch on."

Stan: "Sweet, failsafe."

Example 2:

Sami: "Hey Charlie, can me and my girlfriend skip school at your house?"

Charlie: "Sure, but you'll have to leave before 12, my mother might come home early for lunch. Gotta be failsafe man."

Sami: "Word!"
by Sami Philadelphia October 06, 2009
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Nov 26 Word of the Day
A tiny, almost imperceptible cough, usually hidden behind a mask due to; emphysema, asthma, allergies or the dreaded COVID, so as not to alarm others to your potential of being β€œthe infected.”
I was walking through the grocery store and I had a tickle in my throat but I didn’t want people to think I was contagious so I let out a microcough.
by PeteLoaf320 November 25, 2020
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When you can’t maintain erection due to a condom
It was ABOUT to happen but everything went failsafe when she made me jimmy up
by Baldy Solo October 12, 2018
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The greatest film in history. "Fail-Safe" was a perfect production crossed with an ultimate cast. Made in 1964 it may have saved the planet. It showed what might happen if the "nuke 'em' system" fucked-up. Fail-Safe sobered its audiences. It made the world more "nuclear smart." Writers Burdick and Heller haunted the world with their view of a possibly tragic future.
You're the president of the United States. Your bombers have "blown past" their "fail-safe points" in a tragic error. As you and your translator "sweat blood," end of the world destiny unfolds right before your very eyes in "Fail-Safe."
by the pro from Dover April 19, 2011
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