Musical Musings… This Song Really Perturbs Me

Perturbs isn’t a word I use often, so thanks Atlas Genius.  This song up for examination is called Trojans, and it’s built around this hook:

Your trojan’s in my head.

What the fuck does that mean exactly?  This video offers little help other than the lyrics:

Are these self-proclaimed world-holding exceptional intellects (or are they really good at reading maps?) trying to say that someone has put a Trojan Horse in his head?  Or is it something else?

"Your Trojan Horse is in my head..."

“Your Trojan Horse is in my head…”

"Your Trojan warrior is in my head..."

“Your Trojan Warrior is in my head…”

"Your Trojan condom is in my head..."

“Your Trojan Condom is in my head…”