A kid who always has a dictionary on him or her self to tell people that the word you are saying isn't a real word for their own personal gain they do this so they seem smarter than you the dictionary is optional and they can do this off their own mind
Example
Kid: Bro that's cap
*Other kid barging in*
Other kid:Actually cap isn't a real word and the term cap is a hat or a topper for a bottle
Kid: oh yeah and what proof do you have?
Other kid: takes out dictionary and goes to cap while looking smugly
Kid: don't be a dictionary kid
Although it sounds fake "gegagedigedagedago" is the misheard lyric of "cotton eye Joe" it's a 2024 meme from shitpost culture.
Guy 1: gegagedigedagedago
Guy 2: don't use this in a sentence.