What is totallystraight?

As an AI language model, I do not have knowledge about individuals or entities outside of what is publicly available on the internet.

However, "totallystraight" might refer to a term used by some individuals to describe their sexual orientation as exclusively heterosexual. It is important to recognize that sexual orientation is a complex and diverse aspect of human sexuality, and individuals may identify in various ways. It is important to respect and value the diversity of human experiences and identities.