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like crazy

like crazy

86 7.8
With a lot of energy and very quickly
  • idiom
  • Informal
translation icon : como loco
  • I miss you like crazy.
  • run like crazy
  • work like crazy
  • try like crazy

They save money like crazy instead of investing.

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Examples

  • The pizzas are selling like crazy.

  • His heart was pounding like crazy, but he had survived without a scratch.

    Fiction book (1999)
  • Here is what I do: go to my computer and write like crazy.

    Fiction book (2000)
  • So you start observing things like crazy to figure out what is going on.

  • You must have edited like crazy.

  • I take off, and Bobby is running behind me, laughing like crazy.

  • Plus, I've been working like crazy.

  • You're growing like crazy and you're being more creative.

  • Whenever you say something to him, he grins like crazy and says, 'Okey-dokey.'

    Fiction book (1995)
  • I take off, and Bobby is running behind me, laughing like crazy.

Synonyms

wildly
vslike crazy
104 2.9

In a way that is not controlled and shows strong feeling

is focused on intense effort or speed rather than lack of control
like hell
vslike crazy
  • NSFW
75 7.9

Happening very quickly, with great effort or very strongly

is similar but also highlights quickness or sustained effort
madly
vslike crazy
61 3.2

In a very wild and uncontrolled way

is equally intense but can be more controlled or effortful
furiously
vslike crazy
38 3.0

In a very angry and energetic way

is similar in intensity but is less tied to anger
with a vengeance
vslike crazy
  • Informal
23 6.7

Very strongly and with a lot of energy

is more informal and also covers quick or hard effort
like mad
vslike crazy
  • Informal
13 8.1

Act very quickly and with great effort

has the same informal sense but can also mean any intense action
like the devil
vslike crazy
  • Informal
8 8.2

Very quickly and with great energy

is the informal general term covering speed, effort, or intensity
explosively
vslike crazy
5 4.4

To do something very suddenly and with great force

covers sudden intensity but also slower intense effort or speed
zealously
vslike crazy
5 5.4

Doing something with great energy and strong interest

emphasizes pure intensity and speed rather than devoted enthusiasm
like thunder
vslike crazy
4 4.7

Very quickly and with great force

focuses more broadly on intensity, not only rapid movement
like sin
vslike crazy
  • Informal
1 9.2

To do something very quickly or with great effort

is broader and also emphasizes quickness as well as intensity

Antonyms

1.0

At a low speed without hurrying

30 3.4

In a relaxed way without hurrying

How Intense

like crazy
  • Informal
86 7.8
furiously
38 3.0
intensely
88 3.1
firmly
92 1.0
mildly
92 2.7

Surface Forms

like crazy positive

Morphology

like + crazy

The sense 'very intensely/quickly' is directly derivable from 'like' used as 'in the manner of' plus 'crazy' meaning 'insanely' or 'extremely', so a learner who knows those words can infer it functions as an intensifier. This simile-based, compositional pattern is common across languages and follows regular English usage (though informal), making it understandable to a B1 learner.

Etymology

Like crazy comes from a simple image: imagine someone acting as if they were crazy, moving wildly and without control. So when you do something 'like crazy', you do it very quickly or with a lot of energy.