Geezer/ˈɡiːzər/ Definition 1 of 3Pro Tip 1/3Age Stereotype Often implies the person is not just old, but also a bit traditional or out-of-date. The geezer refused to use a smartphone. Pro Tip 2/3Affectionate Tease Used among friends to tease each other without causing offense. You won, you lucky geezer! Pro Tip 3/3Not for Formal Use Avoid in formal conversations, as it can be viewed as disrespectful. In a job interview, refer to the former CEO respectfully, not as a 'geezer'.