The term "gay deceiver" is an old-fashioned phrase that refers to someone who is deceptive or misleading, often in a lighthearted or playful way. While it may have been commonly used in the past, it's not a term that is widely used today. Instead, you might use synonyms such as "trickster," "charlatan," "imposter," or "swindler" to describe someone who is trying to deceive or mislead others. Other words that might be used include "deceiver," "fraud," "phony," or "posser." Regardless of the specific term used, it's important to be wary of people who might be trying to deceive you, and to always approach things with a healthy dose of skepticism.