A port-manteau of "megalomaniac" and "maniacal". To indicate the person is obsessed with power who possess maniacal traits. A more sinister version of the traditional megalomaniac.
"Justin is not a megalomaniac. He is a megalomaniacal man. He's even more sinister than a megalomaniac!"
A woman who is so attractive energetically, that you can smell her pussy.
"Wow, Janet's pussy smells like coffee. She's so fucking hot! She has pussy energy!"
When your dick feels like play-doh when you stroke it cause you're so fucking high that it feels like play-doh.
"I was stroking my dick and it felt like play-doh, so it must've been a high dick."