Je rebouche le trou de cheville.

Reboucher means to fill in, plug up, or stop up a hole or opening.

In this sentence, je rebouche means I’m filling in / plugging up.
It is often used for things like:

• holes in a wall
• cracks
• small openings

The prefix re- can suggest back up or again, so reboucher often has the idea of closing something back up.

Both are possible, but reboucher is often more natural when talking about filling a hole, especially in DIY or repair contexts.

• boucher = to block, plug, stop up
• reboucher = to fill in / plug up, often with the idea of closing a hole back over

So for a wall hole, reboucher is very common and idiomatic.

Because French verbs must be conjugated.

The infinitive is reboucher = to fill in / to plug up.
But after je, you need the present tense form:

• je rebouche = I fill in / I am filling in

For a regular -er verb like reboucher, the present-tense endings are:

• je rebouche
• tu rebouches
• il/elle rebouche
• nous rebouchons
• vous rebouchez
• ils/elles rebouchent

Le is the definite article, meaning the.

So:

• le trou = the hole

French usually requires an article where English sometimes does too, and here it refers to a specific hole that both speaker and listener can identify.

This is a noun + de + noun structure, which is very common in French.

Here, de cheville describes what kind of hole it is: a hole associated with a cheville.

So trou de cheville means something like:

• wall-plug hole
• hole for/from a wall plug
• dowel hole, depending on context

French often uses de where English might use a noun before another noun.

For example:

• verre à vin = wine glass
• salle de bain = bathroom
• trou de cheville = wall-plug hole / plug hole

Because in expressions like trou de cheville, the second noun often appears without an article after de.

This is very common when French is expressing a type, category, or function:

• une tasse de café = a cup of coffee
• un trou de serrure = a keyhole
• un trou de cheville = a wall-plug hole

So cheville here is not being introduced as a specific cheville. It is part of the label describing the kind of hole.

Yes. Cheville can mean ankle in general French.

But in practical or DIY contexts, cheville often means a wall plug, anchor, or dowel-like fixing piece.

So in trou de cheville, it almost certainly does not mean ankle hole.
It means a hole related to a wall plug / anchor.

French words often have multiple meanings, and the context tells you which one is intended.

A careful pronunciation would be roughly:

Je rebouche le trou de cheville
IPA: /ʒə ʁəbuʃ lə tʁu də ʃəvij/

A few helpful notes:

• je sounds like zhuh
• rebouche ends with a sh sound
• trou sounds roughly like troo, but with a French r
• cheville sounds like shuh-vee(y)

In normal speech, the e sounds in je, re-, le, and de may become weaker or be reduced.

Yes, mostly.

The structure is:

• Je = I
• rebouche = am filling in / fill in
• le trou de cheville = the wall-plug hole

So it follows the standard subject + verb + object pattern:

• I fill in the hole
• Je rebouche le trou

That makes this sentence fairly straightforward for an English speaker.

You could be understood, but it is not the most natural choice if you mean repairing or sealing the hole.

• remplir = to fill
• reboucher = to fill in / plug up / seal over

If you are putting filler, plaster, or another material into a hole in a wall, reboucher is usually the better verb.

So:

• Je rebouche le trou de cheville = the natural DIY/repair phrasing
• Je remplis le trou de cheville = more literally I fill the hole, but less idiomatic in this context

It can mean both, depending on context.

The French present tense often covers both:

• I fill in
• I am filling in

So Je rebouche le trou de cheville could mean either:

• I fill in the wall-plug hole
• I’m filling in the wall-plug hole

If you want to emphasize the action in progress, French can also use expressions like:

• Je suis en train de reboucher le trou de cheville = I’m in the middle of filling in the wall-plug hole

But the simple present is very often enough.