Other spellings water-hole water hole Noun Singular waterhole Plural waterholes (countable) A waterhole is a low spot in the land where water collects; it is usually where wild animals come to drink. After that rain last night, a waterhole appeared in the low spot of land in the Australian outback, and lots of wild animals now drink from it.Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads