Dunning

[Renato]

of a greyish-brown colour

[Mark Zuckerberg]

to demand money from someone:

[Raeanne Dimick]

The process of attempting to steal action from [someone elses] 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].