A short squeeze is a rapid move higher driven by bears abandoning their bearish bets. For a short squeeze to occur, the market needs to have a higher-than-usual bearish activity, as is the case in BNB perpetual futures. In such situations, a minor price bump can send bears or short sellers running to square off their positions, which, in turn, drives prices further up.
Source: https://www.coindesk.com/markets/2023/07/17/bnb-token-is-being-heavily-shorted-perpetual-futures-show/?utm_medium=referral&utm_source=rss&utm_campaign=headlines