1. A competition in urinating, most likely to see who is able to urinate the farthest or for longest time. Mostly done between males, although I'm not ruling out the female possibility.
2. An argument where each participant is merely attempting to out-do the other one, not for the sake of the truth coming out, but simply to win. (see pure heavy metal fans of any type of metal, the most uppity in the world.)
3. Two or more parties simply attempting to out-do one another, not for the sake of truly believing in their cause, but just to win in order to gain some kind of power, honour, or reward of some kind. (see politics, particularly Australian politics; see also university philosophy students if there is such a definition)