queer theory

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A school of cultural and literary criticism, influenced by poststructuralist thought, that questions and subverts common assumptions about sexuality and gender identity.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun LGBT A field of critical theory that emerged in the early 1990s out of LGBT studies and feminist studies, a kind of interpretation devoted to queer readings of texts.