"You dirty cow!" Toddler's hilarious reaction to the viral 'poo' challenge

This is the hilarious moment a two-year-old from Wales called his mum a "dirty cow" after being tricked by the viral poo challenge.

The clip, filmed at their home in Wales shows Louisa wiping chocolate spread on her son Morgan's hand pretending it is actually poo.

When Morgan sees the mess he looks at his mum and says "you dirty cow, it's your poo!" before giggling about it.