Noun
modder (plural modders)
(informal) One who modifies a mass-manufactured object or software.
Finally, Roberts resorted to bombarding Cronje into submission, but it took a further ten precious days and with the British troops using the polluted Modder River as water supply, resulted in a typhoid epidemic killing many troops. Source: Internet
General French's cavalry was ordered to assist in the pursuit by embarking on an epic convert drive towards Paardeberg where Cronje was attempting to cross the Modder River. Source: Internet