Flexception is when one "flexes" appearing or acting bigger than he/she really is, whether it would be financially, physically or mentally. For example, taking a selfie or picture next to a vehicle or property that is not yours. A "Flexception" is doing this (flexing) under certain circumstances such as being on vacation or somewhere at sometime no one can call you out on your bullshit. Example, a vacation in Vegas where you stayed at the holiday inn but posted pics of you checking into the Bellagio.
I really didn't want to take a selfie at the jewelry store with all this jewelry on, but I made a Flexception.
A small piece of information. Derived from the word ken, used often in the scottish language and is synonymous with knowledge.
Person 1: "Hey I don't get this shit. How do you solve this problem?"
Person 2: "I got that one. Give me some kenlets on this assignment and I'll help you w/ that one."