Definition
A 'wisenheimer' is someone who is irritatingly conceited and displays their supposed intelligence in a showy and often obnoxious way. They are the epitome of the 'know-it-all,' constantly correcting others and flaunting their knowledge. Itβs a stronger, slightly old-fashioned version of 'smart aleck.' π Imagine the person who always has to one-up everyone in a conversation. They often lack social awareness and sensitivity, making them incredibly annoying. Basically, it's someone nobody wants to be around.