It’s a gestalt axe
Gimli has many axes, including the one he grabbed from his buddy when he tried to destroy the ring.
In dwarf culture this is considered a dick move.
If you’re going to try and destroy a cursed or evil artifact it’s common curtesy to use your own weapon, thank you very much.
If you watch carefully you’ll notice that Gimli picks up the axe belonging to the Dwarf sitting next to him.
Wow! What a dick! Not only breaks someone else’s axe but outright offers his own axe to someone else instead of offering it as a replacement!
“You have my sword.”
“And my bow!”
“And… this guy’s axe!”
His Father.
Gloin
Son of Groin
Never throw your last Axe, do you think that Gimli only has one?
this made me imagine gimli pulling out infinite axes like Reaper, and just leaving them lodged inside his foes
That still only counts as one.
