Internet regards collie's last wag (1-4)

I believe the answer is:

e-card

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'internet regards' is the definition.
I know nothing about this answer so I can't tell whether this works.

'collie's last wag' is the wordplay.
'last' indicates one should take the final letters.
'wag' becomes 'card' (both can mean a humorous person).
The last letter of 'collie' is 'e'.
'e'+'card'='E-CARD'

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