When someone is running at the same time with music in their ear and playing air drums with actual drumsticks. (could be the wooden kind or the chicken kind).
Yesterday in the downtown area, I saw a person leaving KFC drunning to an April Wine song, but it was in the month of May?
The process of attempting to steal action from someone else's post where the original poster is specifically looking to make a bet. Often occurs in social media but is always in poor taste. Named after the original individual who has since learned proper etiquette.
Dominick was always dunning on Mike's post trying to steal the action Mike was looking for.
A condition where a person so dumb, that he fails to realise how dumb he actually is. Frankly, lacking the competence to identify incompetence - often resulting is immense self-confidence and talking massive cock.
bimbo: "I don't eat crabs coz they kill it when it's alive, it's cruel to do that."
dude: "that's the dunning-kruger effect for ya."