لما رجعت البيت، غسلت وشي وفتحت الشنطة.

Here لما means when. It introduces a time clause: لما رجعت البيت = when I got back home / when I returned home.

In Egyptian Arabic, لما + past tense is a very common way to set up what happened next in a story.

رجعت is the past-tense I form of the verb رجع = to return / come back.

A very common Egyptian pattern is:

• رجعت = I returned
• غسلت = I washed
• فتحت = I opened

The ending -ت tells you the subject is I in the past tense.

In Egyptian Arabic, with verbs like go, come, and return, the destination is often said directly without a separate word for to.

So:

• رجعت البيت = I returned home
• رحت المدرسة = I went to school

This is very natural in speech. You may also hear رجعت للبيت, but رجعت البيت is extremely common.

Arabic often uses the definite article where English does not.

So البيت literally means the house/the home, but after verbs like رجع, it often corresponds to natural English home:

• رجعت البيت = I got home / I returned home

So even though ال is there, the best English translation is often just home.

Because Arabic verbs already show the subject.

In رجعت، غسلت، فتحت, the ending -ت already tells you the subject is I, so أنا is not necessary.

You would only add أنا if you wanted extra emphasis or contrast, like I did it, not someone else.

Because this sentence is in Egyptian Arabic, not formal written Arabic.

In Egyptian:

• وشّ = face

In Modern Standard Arabic:

• وجه = face

So:

• وشّي = my face
• formal Arabic would be وجهي

Both mean my face, but وشّي is the everyday Egyptian form.

Because Arabic often adds possession as a suffix.

Here, -ي means my:

• وشّي = my face
• شنطتي = my bag
• بيتي = my house

So غسلت وشي literally works like washed face-my, but in natural English that is I washed my face.

It is normally pronounced with a doubled sh sound: wišši.

That is because the Egyptian word is really وشّ with a doubled final consonant. In informal Arabic writing, the shadda is often omitted, so you may see وشي, but the pronunciation is still usually wišši.

شنطة is a very common Egyptian word meaning bag. Depending on context, it can mean:

• bag
• purse
• handbag
• suitcase

So فتحت الشنطة most naturally means I opened the bag, but the exact kind of bag depends on the situation.

Because ش is a sun letter, so the l of ال assimilates in pronunciation.

So الشنطة is pronounced something like:

• ish-shanṭa or
• esh-shanṭa

depending on the speaker.

It is still written الشنطة, but the l is not pronounced clearly.

It literally means and, but in storytelling it often naturally gives a sense of sequence.

So:

• غسلت وشي وفتحت الشنطة

means I washed my face and opened the bag, but in context it can feel like:

• I washed my face, then opened the bag

Arabic often links actions with و instead of repeatedly using a separate word like then.

A more formal/standard version would be:

لما رجعتُ إلى البيت، غسلتُ وجهي وفتحتُ الحقيبة.

Main differences:

• إلى البيت instead of البيت
• وجهي instead of وشي
• الحقيبة instead of الشنطة
• formal endings like رجعتُ، غسلتُ، فتحتُ

The original sentence is natural everyday Egyptian Arabic.