vulgar slang Confidence and self-assuredness, especially when exuded in a calm or quiet manner. Although the term alludes to the confidence that may result from having a large penis, the phrase is not necessarily literal and is not exclusively applied to men. Commonly abbreviated with the initialism "BDE." John is a guy who has the confidence to show his emotions without hesitation or embarrassment—that's total big dick energy, if you ask me. A: "I can't believe you were able to negotiate such a big raise. You've got some serious big dick energy, girl." B: "What? I just know I'm worth more than they were paying me."