Sentence:  "Food is what <WSD>queered</WSD> the party. We ordered a big supper to be sent up to the room about two o'clock. Alec didn't give the waiter a tip, so I guess the little bastard snitched." 
Meaning of the word marked with <WSD> tags:  To spoil the effect or success of, as by ridicule; to throw a wet blanket on; to spoil.