Gavin and Stacey star finally reveals truth behind joke that’s baffled fans for 17 years – ahead of last ever episode

A GAVIN and Stacey star has finally opened up about a joke which has left fans scratching their heads for years. 

Gavin and Stacey captured hearts across the UK when it first hit screens back in 2007.

PAGavin and Stacey captured hearts across the UK when it first hit screens back in 2007.[/caption] PAThe hit BBC comedy show is making a return for a final episode.[/caption] PAOver the years, the series has garnered a huge fanbase.[/caption]

Running for three series...