Sticking out the tongue is a naughty gesture and a childish sign of defiance. Can be used to reinforce a joke or to tease and provoke. I am in a good mood and ready for jokes!
The tongue emoji was introduced in 2010 and released as part of the Unicode 11.0 standard. This emoji can be found under the people and body
category. Because the tongue emoji has been around for quite some time, it should display correctly in the majority of operating systems.