big-gun

noun Slang.

an influential or important person or thing: He's a big gun in science.

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins

World English Dictionary

big gun

—n
	informal an important or influential person

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10

Big-gun is always a great word to know.

So is lollapalooza. Does it mean:

a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.

an extraordinary or unusual thing, person, or event; an exceptional example or instance.

LEARN MORE UNUSUAL WORDS WITH WORD DYNAMO...

Slang Dictionary

big gun definition

n.
an important and powerful person, such as an officer of a company. (Often with bring in as in the example.) : I knew they would bring in the big guns at the last minute.

Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw Hill.
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Matching Quote

"That big gun in your hand makes you look grown up—you think! I'll bet you spend hours posing in front of a mirror holding it, trying to look tough!... You scum!"

-Richard Brooks

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