One Four Seven One
Arab Strap

You said it yourself, you can't help but flirt
And I'd be the first to admit I'm easily hurt

I can't take things lightly - you said I'm always in a huff
I know it was just that once but what if that's enough?

Just shut the fuck up and tell me bit by bit
'Cause all I can see is his hand grabbing a tit

I do one-four-seven-one the minute I get in
And if your number's not there your stuff stays in the bin

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I'm going to go out on a limb here and assume one-four-seven-one is the Scottish equivalent of last-missed-call retrieval.  Australian equivalent is *10#... American equivalent is *69.

See if that makes more sense to you.