Crowbar

"I cannot WAIT to find a crate!"

- Nick

The Crowbar is a new close-combat weapon introduced in Left 4 Dead 2.

The crowbar is not really meant to be used against Special Infected, because using it on a Boomer would cover you in bile, and killing a Spitter would leave you right in the middle of the goo. It would also take time to get to a Charger, Jockey, Hunter or Smoker.

Trivia

 * In-game, the crowbar seems to have the shortest range of the melee weapons with only decent swing speed.
 * The crowbar is a reference to another of Valve's popular game series, Half-Life, where the player character's first weapon is a crowbar.
 * The way that the player holds it is very similar to the way it is held in Half-Life.
 * The HUD icon of the crowbar is similar if not the same to one used in Half-Life 2.
 * The way Nick says "I cannot WAIT to find a crate!" is another reference to the Half-Life series, in which rather generous supplies of them can be found and are typically smashed open with this weapon.