No. It means don’t sell in a bear market [1]. From the originator, GameKyuubi:
> You only sell in a bear market if you are a good day trader or an illusioned noob. The people inbetween hold. In a zero-sum game such as this, traders can only take your money if you sell.
> You only sell in a bear market if you are a good day trader or an illusioned noob. The people inbetween hold. In a zero-sum game such as this, traders can only take your money if you sell.
[1]: https://www.investopedia.com/terms/h/hodl.asp