Tesla and SpaceX CEO billionaire Elon Musk has recently tweeted 'hodl the rainforests' on his Twitter page. A lot of people were confused on what he meant with this phrase.

But, what does this really mean?

'Hodl the rainforests'

Whenever billionaire Musk tweeted something on his social media pages, a lot of people think it means something-- or it needs to have a meaning somewhere.

Interestingly, on Sunday, Feb. 7, a weird tweet was posted by Elon in which he tweeted, 'hodl the rainforests.'

To clarify, Elon did not seemed mispelled the word 'hold' with a word 'hodl.' Hodl, in fact, is a common slang term used in the world of cryptocurrency like Bitcoin, which means, holding the cryptocurrency rather than selling them.

Of course, a lot of people have commented on the tweet asking what it meant. Some even searched for rainforest coin, but failed to find it.

Is it literal 'rainforests'

If Elon is not quoting a crypto-based rainforest coin, was the phrase connected to the literal 'rainforests'?

The answer is probably yes.

EcoWatch recently reported that Amazon rainforest, biggest rainforest in the world, is now in the edge of being a 'carbon source' instead of wiping them off.

Express UK also cited that Amazon rainforest can expect its tipping point by year 2064, showing that this part of nature could be wiped off entirely.

Going back to Elon's tweet, the 'hodl the rainforests' phrase could mean that Elon is calling out companies to hold the rainforests, rather than sell them by cutting trees or burning parts of the forest.

After all, Musk has been very vocal in his ways of protecting the nature, as much as possible. In fact, over last days of January, the billionaire pledges $100 million to companies that can provide him the "best carbon capture technology."

His company, Tesla, is also one of the signs of his eco-friendly attitude towards the nature. Over 3.6 million tons of carbon dioxide (CO2) were being saved by the company throughout the years, due to the adoption of his electrical vehicles.

Though the company had its share on protecting the nature, it also had its negative act towards the idea of it.

Last month, Tesla Gigafactory in Germany faced controversies when the company insisted to cut down trees to build the said facility.