A definition.

"masochism"
mas·och·ism [mas-uh-kiz-uhm, maz-]

1. gratification gained from pain, deprivation, degradation, etc., inflicted or imposed on oneself, either as a result of one's own actions or the actions of others, esp. the tendency to seek this form of gratification.
2. A willingness or tendency to subject oneself to unpleasant or trying experiences.

Don't all CrossFitters fit this description a little if not all the way true? I mean, the workouts get tougher and harder, but you all keep coming back?