apparently this is what the kids say when they intend to kiss, or indeed do sex with a member of the opposite, or indeed same sex.
This is one of many things I learnt whilst at Reading, and it made me feel old, or indeed out of touch with what is hip, or indeed cool these days.
What's wrong with just saying 'kiss', or indeed 'pash', instead of saying 'mack', or indeed mackintosh?
Is everyone else already familiar with this term? When was the last time you wore a mackintosh?