Is plonker a rude word

Why is being called an uncle tom such an insult? How do you say Good Day to a Thai lady? Are people who say no shoes on the couch dumb? What does advisable mean? Is you betcha man slang or colloquialism? How do you write a letter for patron? What is a euphemism for annoying? Should an eternity ring be worn above or below a wedding band and engagement ring? What is another word for not wanting to say anything about your wrong actions? What does san ami va mean in french? Why does a person alighting from a moving car has to spread his legs? What is the parts of a friendly letter and its meaning? Can you wash your underwear with other people's washing if you have gonorrhea? What is something you pass around? How to say goodbye to parents and students? What is a palindrome word for addressing a lady? What are some nice names to call people? What is the difference between the salutations Miss and Misses? What does persnickety mean? How To Give Guest Lecture Vote Of Thanks?