Crazy vs. Cuckoo: What's the Difference?

Crazy and Cuckoo Definitions
Crazy
Mentally deranged.
Cuckoo
A grayish bird (Cuculus canorus) of Eurasia and Africa that has a characteristic two-note call and lays its eggs in the nests of birds of other species.
Crazy
(Informal) Odd or eccentric in behavior.
Cuckoo
Any of various other birds of the family Cuculidae.
Crazy
Possessed by enthusiasm or excitement
The crowd at the game went crazy.
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Cuckoo
The call or cry of one of these birds.
Crazy
Immoderately fond; infatuated
Was crazy about boys.
Cuckoo
(Slang) A foolish or crazy person.
Crazy
Intensely involved or preoccupied
Is crazy about cars and racing.
Cuckoo
To repeat incessantly, as a cuckoo does its call.
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Crazy
Foolish or impractical; senseless
A crazy scheme for making quick money.
Cuckoo
Lacking in sense; foolish or crazy.
Crazy
Intensely annoyed or irritated
It makes me crazy when you don't tell me you're going to be late.
Cuckoo
Any of various birds, of the family Cuculidae, famous for laying its eggs in the nests of other species; but especially a common cuckoo (Cuculus canorus), that has a characteristic two-note call.
Crazy
Disorderly or askew
One of the old window shutters hung at a crazy angle.
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Cuckoo
The sound of that particular bird.
Crazy
(Informal) Extremely; very
That restaurant's always crazy busy on weekends, but it's worth the wait.
Cuckoo
The bird-shaped figure found in cuckoo clocks.
Crazy
One who is or appears to be mentally deranged
"To them she is not a brusque crazy, but 'appropriately passionate'" (Mary McGrory).
Cuckoo
The cuckoo clock itself.
Crazy
Of unsound mind; insane; demented.
His ideas were both frightening and crazy.
Cuckoo
A person who inveigles themselves into a place where they should not be (used especially in the phrase a cuckoo in the nest).
Crazy
Out of control.
When she gets on the motorcycle she goes crazy.
Cuckoo
(slang) Someone who is crazy.
Crazy
Very excited or enthusiastic.
He went crazy when he won.
Cuckoo
To make the call of a cuckoo.
Crazy
In love; experiencing romantic feelings.
Why is she so crazy about him?
Cuckoo
To repeat something incessantly. en
Crazy
(informal) Very unexpected; wildly surprising.
The game had a crazy ending.
Cuckoo
(slang) Crazy; not sane.
I think I'm going cuckoo!
Crazy
(obsolete) Flawed or damaged; unsound, liable to break apart; ramshackle.
Cuckoo
A bird belonging to Cuculus, Coccyzus, and several allied genera, of many species.
Crazy
(obsolete) Sickly, frail; diseased.
Cuckoo
A man who is a stupid incompetent fool
Crazy
(slang) Very, extremely.
That trick was crazy good.
Cuckoo
Any of numerous European and North American birds having pointed wings and a long tail
Crazy
An insane or eccentric person; a crackpot.
Cuckoo
Repeat monotonously, like a cuckoo repeats his call
Crazy
Eccentric behaviour; lunacy; craziness.
Crazy
Characterized by weakness or feebleness; decrepit; broken; falling to decay; shaky; unsafe.
Piles of mean andcrazy houses.
One of great riches, but a crazy constitution.
They . . . got a crazy boat to carry them to the island.
Crazy
Broken, weakened, or dissordered in intellect; shattered; demented; deranged.
Over moist and crazy brains.
Crazy
Inordinately desirous; foolishly eager.
The girls were crazy to be introduced to him.
Crazy
Someone deranged and possibly dangerous
Crazy
Affected with madness or insanity;
A man who had gone mad
Crazy
Foolish; totally unsound;
An impractical solution
A crazy scheme
Half-baked ideas
A screwball proposal without a prayer of working
Crazy
Marked by foolish or unreasoning fondness;
She was crazy about him
Gaga over the rock group's new album
He was infatuated with her
Crazy
Possessed by inordinate excitement;
The crowd went crazy
Was crazy to try his new bicycle
Crazy
Bizarre or fantastic;
Had a crazy dream
Wore a crazy hat
Crazy
Intensely enthusiastic about or preoccupied with;
Crazy about cars and racing