Drop base drop is a bearish chart pattern used in forex trading to identify potential trend reversals. Traders look for a series of lower highs and lower lows forming a "drop" pattern, followed by a period of consolidation or "base," and then another drop. This signals a potential continuation of the downward trend, and traders may use this pattern to plan their entry and exit strategies. However, like any trading strategy, it should be used in combination with other indicators and analysis to make informed decisions.