fall over

fall over (third-person singular simple present falls over, present participle falling over, simple past fell over, past participle fallen over)

(intransitive, idiomatic) To fall from an upright or standing position to a horizontal or prone position.
(intransitive, idiomatic) Of an argument, to fail to be valid.
(intransitive, idiomatic, informal, computing) Of a computer program or system, to crash.
(intransitive, idiomatic, informal, South Africa) To break down; to become inoperable.
We'll have to walk; my car has fallen over.
(archaic) To revolt or change allegiance.

fall from an upright position to a horizontal position

English