For those born without a sense of humour, Halopedia has an article on Pistol Type-52 Pistol.
Cquote10h my f***ing god did you see that l33t-a$$ kill? Dude I just pwnt that guy so h4rd...Cquote2
— 6 year-old who should NOT be on xBox live.
Cquote1Why don't we have both?Cquote2
— A little girl in response to Bungie deciding if they should have a Shotgun or Noob Combo in Halo 3.
Cquote1L0l pwnz0rz!Cquote2
— A noob on the Mauler
The Mall-er, also known as Satan's Pistol or the Noob Shotgun or again referred to as the pussy pistol or the drugger is the noobiest weapon in Halo 3. It is mainly brandished by people who are losing the game, is only used for near-instant kills,and was made by Darth Maul.
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This is the Mauler, after going to the Spartan Laser's fashion store.

The main tactic for the Mall-er is to fire, and then hit the guy with the knife on the bottom of the weapon. Usually results in an instant kill, much to 1337 player's dismay. It usually is followed by a gratuitously long t-bag and the kid who just killed you screaming at the top of his lungs and yelling words 6 year-olds like him should NOT know and afterwards you will be infected with the NOOB virus.

It has been noted that Bungie took the thing out of tiny maps, because people wouldn't stop complaining.

Melee Weapons: Kitchen Knife | Japanese Butter Knife | Taser Stick

Handguns: Comfortable Pistol | Another Comfortable Pistol | WTF no scope? | M6C/Suck em' | God's Sidearm | Safety Mode On | Trusty Sidearm | Trusty Sidearm 2: Gradius | Assassination Pistol | Carbine Pistol | Silenced Pistol | Orbital Airstrike

Automatic & Semi-Automatic Weapons: Bullet Hose | Silent Bullet Spitter | Insult to Rifles | Revised Insult to Rifles | Chronologically Confusing insult to rifles | The insult to rifles that actually kicks ass | Bee-Arr | Bullet Spammer | Another insult to rifles | Large Bullet Hose

Other: HEADSHOT! | Pest Control Tool | Mini Missile Silo | Rocket Lawn chair | Splazer | Campergun | Noob Obliterator | Crude Thumper rip-off | Supersonic Rail Exploder | Exploding Cake Detonator | Kill The Hydra

Grenades: Damn, no stickies | Bang Grenade | Ear Bleeder | "I embrace y'all with napalm..."

Melee Weapons: Energy Shank | Hot Poker | Death Stick | Energy Shiv | Gravy Hammer | Monkey Fist | Monkey Shank

Other: Peashooter | Overheated | Angry Plasma Rifle | Overheater | Noobler | Larger Noobler | Long range Noobler | Nailgun | New Noob Combo | Rock Slinger | L337 5K1LL5 | Follow the pink light | Vacuum Quadlazer | Jelly Launcher | Semtex Blue Spider | Stick-rock | Fire in the Box

Heavy Weapons: Mini Blue Jelly Factory | Death impersonated | Godly Plasma Rifle | Huge Water Gun on Spaceships | Hax Gun | Smaller Hax Gun | Derp Gun | Magic Grenade Thrower

The Quadlazer | Zapper | Tracer Rifle | Yellow Light Spammer | Campergun's Retarded Brother | Triforce Gun | Promethean Glory | Forcefield | Bee Grenade