He is a fictional character and the tilular secondary antagonist of BasicallyIDoWrk ,Mini Ladd, and Fourzer0seven's GMod video of the same name. He appears to be a monstrous pink dolphin who is indestructible from any harm.
It first appears when Basically, Mini Ladd, and Fourzer0seven enters a tunnel. Mini and Fourzer0 attempt to talk with the Dolphin but he immediately attacks and kills Mini and Fourzer0. The group tries multiple ways to kill the dolphin but it backfires and kills Mini continuously until they decided to continue on by going around it.