A shegay is a person who identifies as male or male aligned and uses she/her pronouns, while also being attracted to men. Or for short: an mlm/nblm who uses she/her pronouns
Pronouns don't equal gender, anyone can use any pronouns.
Jim is a cis gay man, but feels more comfortable with she/her pronouns! She's a shegay
Literally meaning is an experienced old driver. The implied meaning is that a person very experienced in giving out resources in the Internet, mostly anime porn. Originally from Chinese net culture and is a kind of Chinese exonyms .
Issac Chu is really a shegay! He shares a lot of torrent to me last night!
That shegay have lots of videos from his collection. You can ask him from some.