When someone exhibits dad energy but just enough to fly under the radar as a hip young person when anonymous. If someone's showing signs of reggieness they probably understand memes but will still pronounce it as "me mes"
Joe: "Did you know Anthony turned 38 just the other day?"
Joe 2: "Oh yeah, who doesn't know? As soon as he turned 38 he sent an EMAIL of himself doing the 'it is Wednesday my dudes' vine but instead said 'it is my birthday my dudes'. What's gotten into him?"
Joe: "I think he's experiencing some Reggieness a bit earlier than most."