"It's Wicked"

[mister bus]

What was the advert or product for, where there was a young boy at a table and he comes out with the phrase "it's Wicked" ?

[Poglet]

I thought it was a sat morning tv programme before swap shop or something like that....

[The_Mac_Lad]

Was it for some type of drink? I keep thinking that he wipes his mouth before he says the line. Possibly an ad for milk.