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1.
Thinko is a computer science slang term for a mistake in the writing of a program that arises from the temporary disruption of the thought process, typically leading to a bug.
A typical example of a thinko would be the use of an idiom or syntax taken from a computer language other than the one currently being used, or perhaps the simple inversion of a boolean test that reverses the intended meaning.
by leetnoob June 17, 2006
 
2.
1) A brain fart.
2) A unit of thought; used to quantitatively measure thoughts.
3) A knockoff of the game, 'Plinko', featured on the television show, 'The Price is Right'
1 - "Uhhmm, uh? ... Just hold on, I just had a thinko."
2 - "It took me at least 4 thinkos to work out that math problem."
3 - "Want to go play some Thinko?"
by fydo October 26, 2005
 
3.
A mental typo, where someone says the wrong word but not because they don't know the correct word.
When he mixed up the names of his two close friends, it was a thinko.
by branden January 06, 2006