If you download the new mobile app, 'yo' can mean anything you want it to mean, apparently.

It bills itself as 'the simplest and most efficient communication tool in the world.'

And goes on to state:' Yo is a single-tap zero character communication tool. Yo is everything and anything, it all depends on you, the recipient and the time of the Yo.'

As I write this, it has had over 100,000 downloads from Google Play and is No.9 in the (free apps) iTunes charts.

'I'm finally living again' says Samthestreetsurfer123 in a customer review on iTunes...

'For the longest time I was in a slump, my budget was very tight, my marriage was falling apart, my kids were against me, I lost my job, my dog died, I crashed my car, and I had just gotten kicked off of my local basketball team. I lost my will to live, and then I found 'YO'.'

According to AdWeek, the app launched as an April Fool's joke.

It has (in the last week) raised $1m in seed funding from CEO of Mobli, Moshe Hogeg’s angel fund.

And now it has been hacked by college students, with one of them landing themselves a job with the company.

So what do I say to this new app?

'Yo!@*?!'

(Hey, it can mean anything I want it to mean, right?)