Drunk bishop lost gambling game (5)

I believe the answer is:

lotto

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This might be a double definition.

'drunk bishop lost gambling' is the first definition.
I know that 'gambling' relates to this answer.

'game' is the second definition.
(the UK National Lottery)

Can you help me to learn more?

(Other definitions for lotto that I've seen before include "National gambling game" , "Housey-housey, bingo" , "Game in which numbers are drawn" , "Game of chance involving balls" , "Game of chance based on numbered balls being drawn at random" .)

I've seen this clue in The Guardian.

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