New trike Eddy bust in two f****** days (5,7)

I believe the answer is:

dirty weekend

I'm a little stuck... Click here to teach me more about this clue!

'two f days' is the definition.
I know nothing about this answer so I can't tell whether this works.

'new trike eddy bust' is the wordplay.
'bust' indicates anagramming the letters.
'new'+'trike'+'eddy'='newtrikeeddy'
'newtrikeeddy' anagrammed gives 'DIRTY WEEKEND'.

'in' acts as a link.

Can you help me to learn more?

(Another definition for dirty weekend that I've seen is " A couple of days coupling?".)

I've seen this clue in The Independent.

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