A misspelling of "holding." Hodling means "holding a cryptocurrency" for future profits and not selling. The term came from the misspelled "I am hodling" in an early Bitcoin forum when the crypto's price was dropping. To "hodl" evolved into "hang on for dear life." The X/Twitter hashtag #HODLGANG was created for hodlers of cryptocurrencies. See
baghodling,
Bitcoin pizza and
cryptocurrency.
Hodling Is a New Word
When it comes to cryptocurrencies, hodling is as valid a word as anything else; witness this comment after cryptos took a serious dive in mid-2021.
Hodling Time Magazine
In the late 2010s, Time Magazine added crypto as a subscription payment option. The hodling term had become very popular by then.