Trio
From the CBBC's interview with Kym Marsh, who is "about to be a huge solo star"; proof of the need for a nostalgia licence, to stop idiots using it...
CBBC : Did you have a nickname at school?
Kym : I had lots but the main one I think was Trio, that my brother used to call me Trio because there used to be a biscuit years ago named Trio and there was a girl on the advert named Susie who had the biggest mouth and my brother used to call me Trio because he said I had a big mouth, I was very loud. I can't imagine why he thought that.
written by Jo* Bl*th, approved by Log

As well as being an above average chocolate bar, with an advert featuring a big-mouthed girl demanding chocolate to the tune of Harry Belafonte's Day-O, Trio was a fun game.
Rules : A wooden bench with a back was pulled a foot away from the wall. As many targets as possible would crouch behind it, and pop their heads up every few seconds. Those who couldn't fit behind the bench (as this was queerly the more popular playing position) would stand several feet away, and throw things at their heads as they popped up, like Whack Attack moles.
The reason this game is called Trio? The targets would sing "Trio", to the tune of Harry Belafontes "Day-O" as they poked their heads above the bench.
(To a Pokémon-savvy observer, who is aware of the taming process, the fact that most Pokémon can only say syllables from their own names, and the popping up and down nature of the Diglett family, this must have looked like nothing so much as cheeky wild Dugtrios being tamed by a violent trainer. Dear Jesus, I'm a total Pokémon wanker - Log)
written by Ji*bo *., approved by Log