Mudguts was known for being one of the most psychotic and uncontrollable members of Toecutter's motorcycle gang. He was seen licking the face of a mannequin, spitting at May Swaisey, and generally being a lunatic.
His boots had resembled those of Goose's, therefore indicating that many of his clothing possessions may have been stolen from the MFP's stock.
Mudguts took part in one notable vehicular heist with his other gang members. In a calculative and stealthy operation, he managed to steal a large amount of of petrol from a fuel tanker for Toecutter. His role in the theft was to vault unto the tanker and secure its payload. In the final chase between Max Rockatansky and Toecutter's gang, Mudguts is ran off of the bridge into the water along with Clunk. His fate is left uncertain, though it is possible he survived.