Boxer

A boxer is a guy who punches the crap out of another guy for sport. This sport also demands that the guy gets punched repeatedly by his opponent as well. To lesson the damage however, each boxer gets to where big, dookie padded gloves with laces on them. Whoever lands the most blows within fifteen rounds wins. Too many blows to the head can cause longterm health concerns, notably brain damage.

In film

 * Pulp Fiction: In the 1994 action crime drama Pulp Fiction, the character of Butch Coolidge was a washed up boxer who entered into an agreement with Los Angeles crime boss Marsellus Wallace to take a fall in a fight. Knowing that Wallace was putting up a lot of money in bets, Butch secretly placed his own wagers. He not only failed to take the fall, but ended up killing his opponent. After which, Butch was on the run from Marsellus.