They just killed the mammoth, it’s a joke partially about hunting buddies, partially about the fact you can’t take a mammoth down alone, partially about him getting to keep the carcass (dismissing his friend, neither of them could move it anyways).
The hole in the side is bad drawing. It’s just supposed to indicate the creature is dead dead.
Also, don’t buy anything from Temu. Most things from there have lead in them (even clothing), and most products don’t meet safety standards. Temu is a death trap… Also the app us malware infested and even leaves malware and spyware on your phone after you delete the app!