Runner's Bloat

1.) When one appears fatter or bloated after running due to soreness and swelling

2.) When someone runs one marathon and acts like they're the second coming of Usain Bolt. This is typically performed by regularly wearing your marathon medal, getting a 26.1 bumper sticker, and proclaiming "how little I had to train for it."

1.) "Dang I look big after those 5 miles, must be the Runner's Bloat"

2.) A: "Dave has been very strange after the marathon!"

B: "He's got the runner's bloat I guess."