fall over phrasal verb (see also fall)

1. to fall onto the ground or to fall from an upright position:
Tommy fell over and cut his knee badly.
Her bike fell over.

2. fall over something to hit your foot against something by mistake and fall to the ground Synonym : trip over:
She fell over the dog and broke her front teeth.

3. fall over yourself to do something to be very eager to do something, especially something you do not usually do:
People were falling over themselves to help her.

[TahlilGaran] Dictionary of Contemporary English ▲

fall over
fall over (yourself to do something)
[British, American & Australian, American]
to be very eager to do something.
They were falling over themselves to be helpful.
(usually in continuous tenses)

[TahlilGaran] English Idioms Dictionary ▲