I am not sure if these are taught any where. Personally I think this should be mentioned and educated. I was watching a Korean Drama and one of the girls 'handle' was 나팔꽃 which was translated into "Morning Glory". But when I hear Morning Glory in English my first impression is 'morning wood/hard on'. I thought that wasn't very good translation. Another thought, I tend to drive around with my co-workers quite often. I also say 'Guys, get off'. Then I realized that "get off" is actually inapprorpiate. It's "get out" not get off. When you say get off, it means you are getting sexually aroused. And you should never give head. ;P Unless that's how you swing.