An expression that means to 'treat someone right' that can be used in a number of contexts:

1. Generous hospitality, such serving up good food, or sprucing up your home ahead of visiting guests.

2. Paying someone, especially if the payment is overdue.

3. Sexual favours.

Anglo-Australian phrase, popularised in Melbourne
Example 1

Friend 1: 'Got a girl coming round this weekend.'
Friend 2: 'The one with the cute face? Better get that biscuit out.'

Example 2

Friend 1: 'Mate, we going to this concert or what?'
Friend 2: 'Yeah but if you want to come, you better get that biscuit out.'
by Jamarley May 16, 2019
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