When he doesn't insult his girl's body or big behind to distract her from making fun of his small penis.
He doesn't feel the need to talk his girl down for fear someone with a BD will swoop her away form him if she gets too confident.
He is confident enough to talk his girl up and make her feel as massively awesome as his dick.
Her: "Why don't you ever compliment me?"
Him: "Because I don't want your head to swell, or for you to get too confident."
Her, thinking... "I need someone with big dick energy. I would tolerate his small dick so much more if he didn't try to make me feel as small as his penis!"

Her: "I love how you compliment me every day. It makes me feel so sexy!"
Him: "I want you to feel sexy. It makes me want you even more when you realize how gorgeous you are."
Her: "You have Big Dick Energy."
by JessiesTheory February 4, 2020
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Man-child who sends unsolicited pictures and harasses women, seemingly unaware at how unattractive it is. He acts in a way that makes him seem entitled to a girls attention, time, and body. Wittle man-child just wants hims mama.
Jake couldn't learn that after harassing April for four years, she just wasn't interested in him. Jake continued to send her messages and pictures, showing the entire world his Small Dick Energy.
by princessleia13 July 24, 2020
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When someone (usually male) is rude or acts entitled due to their insecurity. Has nothing to do with actual penis size, but is rather the sense that the person is trying to overcompensate or act like they are better than other people.

It can also be used in the context of someone being hateful or bigoted.
"Ugh, that guy has such small dick energy. I wish he would get over himself."
by Voidgames January 2, 2023
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The scheming malevolent vibes which come from a person who can’t do anything right. Typically a classic BetaMale.
“Did you see those two politicians debate last night? They were both so extreme, neither of them will make things better. I don’t think either of them believed in half of the things they were saying. Both of them absolutely had Small Dick Energy.
by IronMikey April 14, 2023
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Sexy confidence that is unmarked by hate or struggles.

Releasing a song collaborating with one of the biggest acts of K POP when antis ask you to quit your group.
Kim Jongdae is bursting with big dick energy in his collaboration with Dynamic Duo.
by The Nobelleprize January 20, 2020
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The act of absorbing ninja chi into your penis before sex
“I activated my big dick energy before hitting it from the side!”
by zman22366 July 12, 2019
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I think it is best defined from popular Twitter user: @yung_porkchop22 as he replied to a tweet from his timeline

@OUA_general:
Question for the guys:
Will you allow your daughter to marry a guy like you??

@yung_porkchop22:
i’d pay for the wedding
by ogrizz December 17, 2018
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