Queer duck is an unusual and rather derogatory term that refers to someone who behaves in a strange or unconventional manner. There are other synonyms for this word that are considered more socially acceptable, such as eccentric, unconventional, offbeat, quirky, or oddball. The term "quirky" often implies a more positive meaning, referring to someone who exhibits unique characteristics that are admired, whereas "odd" tends to describe something that is unusual or different but not necessarily appreciated. Synonyms can be used to replace the term, "queer duck," and convey the same message without sounding as offensive or disrespectful. Ultimately, it is important to choose words wisely and respect other individuals' identities and lifestyles.