There are a lot MFP-ers that either run, or want to run. Just do a search for "C25K" in the forums; there are millions of entries - well not as many as "Do I Eat My Exercise Calories or Not" - but close. Some of them have made it to Urban Dictionary. (These are from my first book, ICU to Marathon)

If you have not been a runner, or you are new to it, here is some runner's jargon you might find helpful.

- Aerobic: So out of breath that you wish you were dead.
- Anaerobic: Aerobic's kid sister.
- Bathroom: these are usually port-a-potties - with the emphasis on potty! Bring your own hand sanitizer and possibly a tazer.
- Chip: 1. Made of chocolate and the reason you need MFP. 2. Embedded in your number by big brother and the race officials.
- Chip Time: The time your chip crossed the finish line. If it is on your person, it's good. If it's in an ambulance it's not so good.
- Cool Down: Sudden drop in temperature after guzzling a cold beer or other suitable beverage after a race.
- Dedication: To much fiber the day before a race.
- DNF: Did Not Finish. Better than DNS: Did Not Start.
- DFL: Dead freaking last, Better than a lot of things - well not cookies.
- Drafting: Beer after the race
- Elite Runner: Not part of MFP.
- Fartlek: A winning strategy when others are drafting you.
- Gun Time: When some asks you, "How far was this marathon?!"
- Hitting the Wall: Mad because you can't find your running shoes.
- Intervals: Taking turns watching the kids.
- Jog: Remembering your name at the registration table.
- Negative Splits: Wearing embarrassingly tight clothing.
- Pace: The speed at which you actually can run.
- Passing: For gas, mile/kilometer markers and other runners. Mostly good.
- Pick-Ups:  Asking for phone numbers and Facebook names at the start line.
- Pronation: Patriotism.
- Race: The obligation to do what you think you can't.
- Runner's High: Better than sex. If you run, you know.
- Safety Pins: Not as safe as they claim to be, but used for attaching numbers.
- Sneakers: Cheap running shoes.
- Stinky Feet: Stinky feet.
- Supination: 'Merica 
- Target Heart Rate: Anything greater than let's say 10 beats per hour.
- Toebox: What they put your toes in after they are cremated.
- Walking: Plum tuckered out.
- Wall (The): A place where wailing happens a lot.
- Winning: What Charlie Sheen thinks he does.

Thanks for the votes and comments.

For real definitions, check out this glossay at runnersworld.com