Part of the beauty in any language is the slang used by native speakers. Slang typically arises from younger generations who come up with coded language to discuss sensitive matters without older generations understanding them. Today, I’d like to define the word extra, which is used by younger generations with an alternative connotation:
Meaning: over the top or acting in a manner that is excessive, uncalled for, inappropriate, etc.
Synonyms: too much, excessive, inappropriate
Kerry broke up with Karen, so she decided to egg his house and flatten his tires. Her behavior was completely extra.
You really should not have argued with the professor today, your behavior was extra and caused so many problems.