People who swing between religious beliefs and/or atheism.
A: Wait, you're going to a Hindu mass? I thought you were Evangelical?

B: Yea, I go to both - I'm a flexi-theist!
by Shannning January 9, 2010
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It is an optional supply of handmade food which someone offers to share in a social setting.
Hey bro, I got some flexi food at home in case you´re hungry.
by TastyMilk March 29, 2023
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Slang among nurses for sexual activity with a man having a reflexogenic erection, hence flexy. A reflexogenic erection is a form of unwanted erection of the male penis, that occurs when blood pressure changes in the abdomen, rather than by sexual arousal; It can be induced in a male by applying pressure to the lower abdomen, as in cases of forced sex/rape by females upon a male.

Reflexogenic erections are common among males who are paralysed and/or have spinal injuries.
Nurse1:" Sarah is pulling night duty on the Para Ward again?"
Nurse2:" Think she and that cute T8 are having some flexy fun?"
by D F Stuckey February 19, 2004
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A definition used when an employee who works on a flexible basis, 'clocking' in and out to make up their required hours, purposely leaves their clock on to have a poo.
"I'm holding it in until 5.00pm, so I can have a Flexi-Poo."
by Adam FJ & Chris W January 31, 2008
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someone who looks like they are always flexing, or people who wear shirts that make them look like or force them to flex. An item of clothing may be identified as sexy flexy
joe rogan, shamar moore and and who thinks that they are sexy and flexy wear super tight fitting sexy flexy clothing
by Young Arsony July 30, 2008
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Someone who runs themself into the ground at work in the (sometimes misguided) grand persuit of a little extra credit on their flexi-time record. These people usually arrive in the office at 0700 and leave at 1800, normally sporting a pale and nervous disposition
Office Worker 1: "Why are you working so late?"
Office Worker 2: "To get some credit on my flexi so I can leave early on Friday"
Office Working 1: "You flexi junkie!!"
by The Happy Homesick Alien January 4, 2008
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