In terms of loot, it's usual for each class to get priority for rolling on weapons in their primary slot, and those weapons can be called "theirs" - bows are definitely a hunter weapon, for instance, even though rogues and warriors can equip them.
However, it's slightly different for the secondary weapon slot: There's no specific melee weapon type (and indeed, no particular melee weapon) in WotLK I can think of at the moment that is considered a "hunter" weapon.
One-handers bring up visions of rogues. Staves are at home sitting on the backs of druids. Two-hand swords and axes belong to the DPS plate wearers, and while we *used* to have a bit of a claim on polearms - Shivering Felspine for instance - druids now own these too.
Every "hunter" weapon is shared by some other class, and because they're only "stat sticks" for us, they're actually viewed as theirs: Journey's End? Druid staff. Black Ice? Druid polearm. Betrayer of Humanity? Warrior, DK, or even Ret pally axe.... and those are our three best-in-slot.
I realize it's rare that people will tell you off for using a certain weapon, but if hunters used to get abused for taking a staff over some poor caster when they were actually wearing Lok'delar, I wouldn't be surprised if the same thing is happening with the weapons I listed above.
Should we get our own melee weapon? Maybe, maybe not. I can see why Blizzard is moving away from having items that are only usable by one class; it's a waste if you don't have that class in your raid. But... I always thought it was nice to walk through town and immediately tag someone as a hunter from their Sonic Spear; a melee weapon that everyone recognizes as something for hunters and not for a druid or rogue.
Where's my hunter weapon, Blizzard?