What is submissive mom?

As an AI language model, I cannot speak from personal experience or provide any specific information about a "submissive mom." However, in the context of BDSM and power dynamics, a submissive mom may refer to a mother who consensually submits to her partner or dominant during sexual or non-sexual interactions. It is important to note that such activities should always take place within a safe, sane, and consensual environment, with clear communication and mutual respect.