klackhole 

The black hole that can be found between your ass cheeks

He split his klackhole

klackhole by Slue Cropsy September 29, 2003

Blackhole sun 

Soundgarden's best known song. Also, the best "Fuck the world" song ever written.

Hang my head, drown my fear, till you all just dissapear
Blackhole sun won't you come and wash away the rain.

Blackhole sun by Wtf donut August 6, 2009

youtube blackhole 

where you go to youtube expecting to watch the video you went there for, but you then proceed to get lured into clicking on video after video from that damn "related video" side bar until you are fully hypnotized by youtube. and before you know it, hours have past and you sit there saying to yourself "how the hell did I go from watching puppies to chicks kicking hobos in the balls?"

Bob; yo dude why didnt you text me back last night?
Me; Sorry bro, i got sucked into a youtube blackhole and before i knew it, it was 4am.

youtube blackhole by yungbl00d January 30, 2014

blackholed 

When someone, usually after some type of romantic encounter, chooses to look two inches above your head to avoid eye contact as if you are a black hole.

"So I saw Alex walking to class and he completely blackholed me."

blackholed by Grandma Down! January 31, 2009

Alabama Blackhole 

When two guys are doing the same chick in the ass at the same time and the'yre all cousins.

Guy 1: You hear about Dayrl and Bill?

Guy 2: Ya i heard they give their cousin cindy the old alabama blackhole

Alabama Blackhole by mrfleshwound July 4, 2009

drama blackhole 

In reference to a person that attracts drama with the strength of a black hole. Especially if it's about interpersonal issues.

"My ex has turned into a total drama blackhole! She's talking trash to my friends!"

drama blackhole by thegoodex November 23, 2009

Blackhole 

A single point of infinite density and mass. Blackholes mass is so great that nothing can escape it's gravitational pull, not even light.
Blackholes are supposedly a reality but there is no way (currently) to prove that they are what they are. Blackholes are created by a star or planet of great mass exploding and then collapsing in on itself creating a gravitational pull that just pulls everything in more eventually ending in a blackhole. Blackholes are often identified by circles of light that orbit them because of the gravity. Blackholes also give off X-Ray and infared signals making them easier to discover.
Blackholes are often theorized as tears in the time-space continuum meaning they can be portals to other points in space or time. Many sci-fi books and movies theorize blackhole possibilities, such as L. Ron Hubbard's "Mission Earth" novels using blackholes as an energy source.

Bob: If a blackhole existed on Earth for more than 3 seconds, Earth would be gone.
Joe: But I hear scientists are attempting to create bla-- *Earth is sucked into blackhole in 3 seconds*

Blackhole by ZZM v2.6 May 6, 2006