like crazy


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like crazy

With great intensity or speed. Ugh, these mosquito bites are itching like crazy! Now that there's the threat of a snowstorm, shoppers have been buying shovels and salt like crazy.
See also: crazy, like
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

like crazy

 and like mad
Fig. furiously; very much, fast, many, or actively. People are coming in here like crazy. There isn't enough room for them all. We sold ice cream like crazy. It was a very hot day.
See also: crazy, like
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

like crazy

Also, like mad; like nobody's business. With exceeding enthusiasm or speed, without restraint. For example, We shopped like crazy and bought all our furniture in one day, or Once he's out of the town limits he drives like mad, or The choir sang the Hallelujah Chorus like nobody's business. The first terms employ crazy and mad in the sense of "lunatic" as a hyperbole for lack of restraint; the third implies that no business could be conducted in such an extraordinary fashion. The first and third date from the 1920s, the second from the mid-1600s.
See also: crazy, like
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

like ˈcrazy/ˈmad

(informal) very fast, hard, etc: running/working like crazy
See also: crazy, like, mad
Farlex Partner Idioms Dictionary © Farlex 2017

like crazy

and like mad
mod. furiously; very much, fast, many, or actively. Look at those people on the bank. They’re catching fish like mad! I’m running like mad and still can’t catch up.
See also: crazy, like
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.

like crazy

Informal
To an exceeding degree: They were running around like crazy.
See also: crazy, like
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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