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1.
Someone who looks like a fish and thinks he is solid
Shane: Woahhh you are such a galbraith
Matty: Do i look like a fish??
by Matty Kirk March 21, 2008
 
2.
The act of sinking all 4 bean bags in the game of cornhole. If you throw less than 4 you can put it into a fraction.
I just threw a three-quarter Galbraith! That's worth 12 points...
by claydough85 August 02, 2009