What is a Hot Girl Summer? For the uninitiated, a Hot Girl Summer is basically the summery version of BDE. It’s not actually about being ‘hot’, but more like a state of mind. Think of it like a gender-neutral term that can be applied to anyone who is just basically living their best life. ‘It’s just basically about women — and men — just being unapologetically them, just having a good-ass time, hyping up your friends, doing you, not giving a damn about what nobody got to say about it,’ Megan explained in an interview with The Root.