This meaning shows when 'extra' means something more than normal or usual. It often describes things that add to what you already have.
I need extra sugar for the cake.
She worked extra hours today.
In movies and TV, an 'extra' is a person who appears in the background without speaking. They make scenes look full and natural.
The extra stood quietly in the crowd scene.
Extras help make movies look real.
This informal use means someone or something is too much or tries too hard. It shows behavior or style that stands out more than needed.
He is extra when he tells stories.
Her dress is extra for that party.
In games or events, 'extra' means something added beyond the normal amount. It can mean extra time or extra players.
They played extra time after the match.
The team added an extra player for defense.
Sometimes in informal English, 'extra' is used as a verb meaning to do more than necessary or to act dramatically. This is mostly slang and not standard.
She extras a lot in her acting.
Don’t extra when you tell jokes.