(Fair warning, there's some adult language in the song, so you might not want to watch it while at work, school, or in the presence of children, bosses, co-workers, and priests)
In any case, I've found myself sometimes singing the chorus ("I'm going to pop some tags, only got twenty dollars in my pocket") and the other day on Tumblr, I came up with a version for the Space Marines from Warhammer 40k, which happens to be the title of this post. Someone else offered additional 40k-ish lyrics:
Drop into the field be like ohfuck that’s a big WAAAGH!,This isn't even the weirdest scifi related thing I've done on Tumblr either. I think the same day I started a discussion on Data's balls. It started out as a joke, but actually turned into a real debate. Last night, I started another about whether or not zombies still have functional digestive system and that started out with me wondering if zombies pee and poop!
So pumped to wreck some shit with a mag in my Boltgun,
Orks start to die, their brains all pulpy,
The Warboss be like “Damn that’s a cold ass Astartes!”
In case you're wondering, probably not. The best answer was that zombies simply eat until their stomachs burst. That in turn led to the larger issue of whether their organs still functioned. I don't think so, otherwise you could kill a zombie by shooting it in the chest and destroying its heart.
I honestly have no idea how I come up with that stuff.