like crazy

cra·zy  (krz)

adj. cra·zi·er, cra·zi·est

1. Affected with madness; insane.

2. Informal Departing from proportion or moderation, especially:

a. Possessed by enthusiasm or excitement: The crowd at the game went crazy.

b. Immoderately fond; infatuated: was crazy about boys.

c. Intensely involved or preoccupied: is crazy about cars and racing.

d. Foolish or impractical; senseless: a crazy scheme for making quick money.

n. pl. cra·zies

One who is or appears insane: "To them she is not a brusque crazy, but 'appropriately passionate'" (Mary McGrory).

Idiom:

like crazy Informal

To an exceeding degree: They were running around like crazy.

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crazi·ly adv.

crazi·ness n.

Thesaurus

Adv.

1.

like crazy - with great speed or effort or intensity; "drove like crazy"; "worked like hell to get the job done"; "ran like sin for the storm cellar"; "work like thunder"; "fought like the devil" like hell, like mad, like sin, like the devil, like thunder colloquialism - a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech