1. One who dresses and/or behaves in a manner or style associated with another gender. Tom works as an accountant during the week, but he has a performance routine as a gender bender on the weekend.

2. One who challenges, denies, or explores the borders or limitations of gender identity by various means. Some of the leading academic gender benders are gathering this week for a summit on transgender rights.

3. In electronics, an adapter that has either two male or two female connectors and is used to change the gender of a plug. If that's a male connector, we'll need to get a gender bender to finish this job.