Dirtchuck[1] was the surgical fusion of Dirtbag and Groundchuck.
History[]
Following the destruction of Dr. Barlow Mutant Cosmetic Surgery Services, Groundchuck was beheaded by Clyde and Dirtbag was smashes repeatedly with a rock by Sheena. TMNT #130 At some point thereafter, Dr. Barlow recovered their remains and stitched them together, reanimating them with a Dragon scale.
As Alopex, Zanna, and Zink move to track down the kidnapped Mushroom, Barlow sees through his Night Terrors that they are approaching, and sends Dirtchuck out to handle them. They bust through a wall right at their location and immediately attack. Alopex is severely beaten and Dirtchuck flings Zanna off into the distance, where Leatherhead is. Barlow commands Leatherhead to eat her, but he fights against his control and holds off Dirtchuck long enough for the weasels to drag Alopex away. TMNT #142
When Leonardo, Donatello, Michelangelo, Venus, Koya, Bludgeon, Angel, Zanna, and Zink return to the area to mount another rescue mission for Mushroom, the Night Terrors subjugate them all to nightmarish visions. Venus manages to use her magic to free herself and Mikey, only to find the others watched over by Dirtchuck. Barlow sics Leatherhead and Dirtchuck on them, with a blast from Leatherhead causing Leo to recover. Leo cuts Dirtchuck's scale and watches as it oozes red goo, realizing that it could be a weak point. He rams his katana through the scale and out Dirtchuck's back, seemingly finally putting an end to them. TMNT #143