|
|
 |
|
|
|
|
| crack up |
verb |
|
| Definition: |
| |
1. intransitive verb have breakdown: to experience a psychological or, sometimes, physical breakdown, usually because of stress
(
informal
)
|
2. intransitive verb break into pieces: to crack and break into pieces
|
3. transitive and intransitive verb laugh uncontrollably: to laugh uncontrollably, or cause somebody to laugh uncontrollably
(
informal
)
|
4. transitive and intransitive verb crash: to crash a car, boat, or aircraft
(
informal
)
 a plane that cracked up
|
|
|
|
