An OASIS (OASIS) parent wrote to say she found it humorous when her AS child said he was "allergic" to something he didn't like.
I have always told people I am allergic to things I need (or prefer) to stay away from, and I don't understand why it seems funny or odd to say it. After all, I do react with my whole self to many things/situations, and if I react negatively it's not so different from breaking out in hives. The hives are inside, that's all.
In fact, it would be possible to write up a good basic description of AS, at least from one angle, as a systemic social allergy with specific manifestations varying from person to person.