Girl, boy and me horribly coarse and vulgar (9)

I believe the answer is:

gorblimey

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'coarse and vulgar' is the definition.
I can't tell whether this defines the answer.

'girl boy and me horribly' is the wordplay.
'and' is a charade indicator (letters next to each other).
'horribly' indicates anagramming the letters (a horribly wrong version of the letters).
'girl'+'boy'+'me'='girlboyme'
'girlboyme' with letters rearranged gives 'GORBLIMEY'.

Can you help me to learn more?

(Other definitions for gorblimey that I've seen before include "Vulgar expression of surprise" , "working class" , "Coarse" , "Well I never!" , "Gracious" .)

I've seen this clue in The Guardian.

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