How does "Cleave" works?

Question

Eldritch meele weapons have this "mechanic" but how exactly does it work? 

You see an eldritch greataxe (Atk:56, Def:33, axe fighting +3, Cleave 3%).

Imbuements: (Empty Slot, Empty Slot).

Classification: 4 Tier: 0.

It can only be wielded properly by knights of level 270 or higher.

It weighs 65.00 oz.

Answer 1

Cleave

If a weapon has this modifier, regular attacks damage up to two creatures (secondary targets) for a certain percentage of the attack hitting the main target, if they are standing next to the main target and the player. Assuming the player is fully surrounded by creatures and an attack hits the main target, these are the secondary targets affected by Cleave:

Secondary target Main target Secondary target Unaffected Player Unaffected Unaffected Unaffected Unaffected

Main target Secondary target Unaffected Secondary target Player Unaffected Unaffected Unaffected Unaffected

Different types of damage will be dealt as a percentage as well. The damage the main monster receives before any reduction will be dealt as a percentage to the other creatures, where the damage might be reduced according to their defense (sensitivity, armor, etc.).

From Tibia - Free Multiplayer Online Role Playing Game - News

This is basically a mechanic in which you damage secondary targets: your main target is the creature you're targeting (for the basic attack) and with cleave you'll be damaging the 2 mobs that are next to it, your secondary targets (kind of similar to the exori min attack but could also be in diagonal).