Commonly accepted theory of the beginning of what we know as the universe. Mostly hypothetical in the past, but now has confirmed measurements by a NASA satelite WMAP. Event horizon indicators place a space-time beginning focal point at 13.7 billion years reverse time. It is not understood what the state of pre-energy/matter was or the catalyst to the event, as the pre-state had no observable horizon.
The big-bang was either an anomaly or it was not.
by Guido1 February 06, 2009
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Similar to docking and can be simultaneously be done in the act of docking,

The Big Bang is the act of pressing two penises together head to head, masturbating, and producing a massive explosion of cum comparative only to the creation of the universe.
"Johnny and Richard have a habit of creating The Big Bang every time they masturbate together."
by thunderdome May 07, 2008
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guy: I feel akward talking about the 'you know what' in public.
girl: well...then call it big bang.
by Offlineuser1 January 17, 2009
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The very disturbing, way too short set of bangs on an extremely ugly person that make even the strongest human cringe and want to vomit. The most hideous of the Big bang is the permed bang which is of course known by it's medical term the Biggest bang!
Wow did you get a load of that freak over there? Now that's a Big bang if I ever did see one!

Virginia is a perm away from sporting the ever dreaded Biggest bang!
by C. Mike Rack May 19, 2009
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A major dramatic, often disruptive or destructive, event.
When the Warlocks get back in town, there is going to be a big bang boom with the Hell's Angels!
by I, Wreckerrr February 02, 2016
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