Huge glasses, awkward smile and buck teeth. Used humorously or ironically for nerds or to express how smart you are. Stereotype of a nerd; a smart but funny-dressed person with social deficits.
The nerd face emoji was introduced in 2015 and released as part of the Unicode 11.0 standard. This emoji can be found under the smileys and emotions
category. Because the nerd face emoji has been around for quite some time, it should display correctly in the majority of operating systems.