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1.
An exclamation used to justify whenever someone does something just for the heck of it, or to see what would happen; it was not done needlessly, but rather for the advancement of science!
Typically spoken of either in a comical Bill Nye way or in an insane, mad scientist way. Props, like a working Tesla coil, are recommended but not required.
- Dude, we have to microwave this lump of moldy cheese... FOR SCIENCE!
- I need to put a duck in a vat of Jell-o. FOR SCIENCE!
etc.
by bobbula February 18, 2008
 
2.
An exclamation added after suggesting an idea that is obviously terrible, or a request with sexual undertones.
1. You know beer pong, where you have a drink for each point? We should try beer-scrabble!... for science!

2. so you used to do a pole-dancing workout? you should send me a video of that.. for science!
by superwheels June 11, 2013