guess, but this quote was from Roger Luckhurst. The clue's in the question: Judith
Butler wasn't actually talking about "queer" in 1990.
The quote you chose was: '[The term] "Queer", then, can nominate specific 'homosexual'
bodies, but can also mark a disturbing mobility or non-fixity between diverse
Luckhurst (1995), Journal of Gender Studies, vol. 4, no. 3).