Abom is the Abominable Snowman or Yeti, who appeared in "Yeti or Not, Here I Come". He had been hiding in the Himalayas since the Pleistocene era to avoid being reaped by the Grim Reaper.

Abom has three arrows sticking out of him because many have attempted to kill him, but because Grim is not there, he does not die. He has 32 sled dogs. Whenever Grim, Billy and Mandy have Abom, he distracts them somehow and gets away. When Abom had nowhere to run, Grim finally destroys him when the glaciers landed on top of him. Abom is voiced by David Beron.

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