pertaining to or related things of a very homosexual matter, campy, in the closet type things that tell you a person has certain undiscovered power of gayness waiting to come out.
Bob: Hmm these salads are really nice, I like they way the spruce it up with just a touch of olive oil and then counter strike obvious homoistic butt sex reference it with that tangy bit of lemon.
Jim: Hey Bob isn't two guys talking about salads a little HOMOISTIC..
Bob: Jim grow up..and become the backdoor bambi that you really are..
Jim: Ok I was just checking pass me my high heels..