1. strange or unusual; odd
Usage: somewhat dated
2. relating to sexual and gender minorities; not heterosexual or cisgender
Usage: modern usage; can be offensive when used by others

1. to spoil or ruin something
Usage: informal; chiefly British

Examples

• There was something queer about the way he looked at me.
• The old house had a queer smell that I couldn’t identify.
• She identifies as queer and is active in LGBTQ+ advocacy.
• The queer community organized a pride parade downtown.
• Don’t let the rain queer our picnic plans.
• His constant interruptions queered the whole meeting.