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A chess player of the highest caliber and greatest skill. Only the strongest of professional chess players, typically having a FIDE rating of 2600 and above. A vary prestigious and rare occurrence, only 400 or so living in the world. The United States Champion would be a Grandmaster.
The state champion at age 13, Daniel was touted as a possible future Grandmaster.

He beat everyone in the city with ease, but was demolished when he finally played a real Grandmaster.
by Schweinsberg July 26, 2004
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Aug 3 Word of the Day
A way of expressing that someone is sexually attractive. It is often used with irony or playfulness.

Comes from the verb “breed” which is to copulate with intent of bearing children.

For someone to be truly “breedable” they need to be fertile.
Anon: You are looking mighty breedable this fine evening, m’lady.
Stacy: Please don’t say that to me.
Brad: Woh, you look submissive and breedable, Becky.
Becky: Wow, thanks. *sex*
by 100PercentEthylAlcohol July 14, 2021
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A person of the upmost uberness, a banterholic of the greatest degree and leader of the grandmaster alliance.
In the beginning grandmaster created the banter and the alliance.
by Harold Shippman April 29, 2005
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To obtain 100 skill points in any given skill in the world of Ultima Online.
Bob managed to 7x Grand Master (GM) his newest character in less than a week. As he didn't leave his computer for days on end he had to poopsock numerous times.
by Dasspam November 08, 2009
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Grandmaster is a rank I'm overwatch that only the top 1% can achieve
Ed:"Last week I finally hit grandmaster"
Leo:"I can't seem to get out of silver"
Ed:" maybe stop playing hanzo"
by Duck man 4 September 10, 2017
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