Just mentioned to our lass that BBC has one and a half hours of snap programmes. She, who is Irish says "why do they call it snap?". I have no idea, does anybody else? BTW Man U just scored.
Miners used to take metal containers with their sarnies / food in that snapped close to keep the dirt out.
From when 2 miners compared there food darnt pit - " I've got dripping again what about you?"........"Yeah, snap!" Dutch / Lower German snappen - to bite........apparently
Like the snappen answer, sounds convincing. A lot of dialect goes way back. Sorry about the double post.