Mystery of Trump's 'Covefefe'?

The term became another Tweeting Gaffe of Donald Trump most trending worldwide. The most interesting thing which creates curiosity, is "Covefefe" what is it? what does it means no one knows!
What was that Tweet?
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Lot of people keep on googling and keep on trying to find out the meaning and which makes the Covefefe searched term on web in the First quarter of 2017. But some genius figure it out as following answer of this mystery.

Ref: #Urban-Dictionary