The common term seems to be "water skiing douche" and it is something to protect against. Presumably males and females also need to avoid an anal douche.

See references of this paper which refer to some specific instances: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1305204/

Edit: the term is "water skiing enema" for rectally injected water injuries... The worst case scenario is severe lacerations to the vagina wall or a rectal blow out.

https://www.sheknows.com/health-and-wellness/articles/809730...

Vagína is pretty strong, it holds during childbirth. Males parts can be injured easily.