go sit down fucking bitch ass, smelly breath, you should go get a life rather than telling other people if they are relevant or not, the only thing not relevant is your bitch ass over here

someone with little meaning and little importance.

KSI and his brother

Being irrelevant mean you aren't valid and unwanted. If your irrelevant that means you don't fit in and that you should just go somewhere and do something while feeling sad for yourself.

To have no impact on the day, week, month, year or even the world.

When someone is so irrelevant that it makes the bar tender look somewhat interesting

When a female who has male friends who has had sexual dates with each one of them and the irrelevant dick catches feelings for her and gets mad at all the other one who's had sex with her and now she deletes his number