What is 'A proper fat lad's plateful'?

[victorgrant]

Hello,

How big is it and what are the vital ingredients?

What is 'A proper fat lad's plateful'?

Please help.

I didn't find the right solution from the Internet.

References:
forums.digitalspy.com/discussion/2251800/what-is-a-proper-fat-lads-plateful
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Thanks!