(A personalized black & yellow California state vanity license plate, customized to read “FLEXDNA”, on the back of a Jeep Wrangler.)
FLEX DNA gives me the idea of like… someone who is genetically superior, but like, in a fun way, and knows it. Not in like some weird evil eugenics way, this doesn’t give me “crazy weirdo” vibes, this gives me fun vibes. MY DNA IS A FLEX BABY.
Johnny Bravo type shit. “Hey mamma, whaddya say we make like DNA and get all… twisted up? Huah! Heah!” (that’s the sound Johnny Bravo makes when he flexes, of course.)
This could also mean that these folks are just born to show off. Flexing (slang for a sort of bragging) is simply encoded in their genes. (Hence the Jeep? Matches the identity, I’d say.)
Then again, maybe they’re a chemist, a geneticist, some sort of lab researcher, and they discovered something cool about it that they flex on.
Or maybe they’re just a buff geneticist! “DAMN, I CRUSHED ANOTHER ERLENMEYER FLASK IN MY BEEFY FINGERS.” Probably happens all the time.