This is similar to a sword in length and appearance but has no cutting edge because it's primary use is for... stabbing. Link must either sneak up behind or roll around enemies to use this weapon.
It instantly freezes the enemy and causes severe damage.
It would be received at the end of a trading quest with Tingle.
Metal Dildo w Lube:
When combined with a bottle of lube this becomes an item that can help you befriend NPCs, namely Tingle.
You frighten me at times.