An attractive woman with nice ROUND curves, hence the word rounder. Can be used in short as "der". Can also refer to any attractive woman depending on the persons tastes or interest
Check out that rounder over there!
Did you take that rounder home last night?
This place is stacked with ders!
Did you see that der sitting over there?
by MR. KNOWITALL69 April 29, 2011

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Top Definition
A player who knows all the angles and earns his living at the poker table. The absolute opposite of a 'sucker.'
John was the best rounder around.
by valoem October 28, 2004

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A kickass movie about poker released in the late 90's.
Starring Matt Damon.
One damn good film.
Listen, here's the thing. If you can't spot the sucker in your first half hour at the table, then you are the sucker.
by KRHimself January 24, 2004

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one who makes a living by playing poker
"Everyday he works from 9-5 just grinding it out."
"That's what it takes to be a rounder."
by katan July 28, 2004

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A poker player traveling around looking for (usualy) high stake games.
Meet Mike, local rounder.
by Puciek January 08, 2009

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A game played by little girls in UK that is suspiciously similar to baseball
by Dave October 09, 2003

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An English sport played only on an amatuer level. Somewhat like Baseball, but without some of the sillier rules and without the ridiculous overblown hyperbole of the American monstrosity.
It's sunny, but I can't be bothered with football. Let's just play rounders.
by Rob_W November 25, 2005

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One who makes a living or searches out opportunities usually with financial rewards by being around the business & social circles of uber-successful people.
You see John, he comes by the office every week or so to say hi but he's just another rounder looking for new deals.
by FonzTrader November 09, 2013

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