المدير شرح المشكلة في الاجتماع، بس الزباين ما فهموش الحل.

Roughly:

el-modīr šaraḥ el-moškela fil-egtimāʿ, bas ez-zabāyen ma fihmūš el-ḥall.

A few pronunciation notes:

• في الاجتماع is usually said as fil-egtimāʿ
• الزباين sounds like ez-zabāyen, not el-zabāyen
• الحل sounds like el-ḥall

Transliteration can vary a lot, so you may see slightly different spellings in Latin letters.

Here, بس means but.

It is a very common Egyptian Arabic connector in everyday speech.

Be aware that بس can also mean only or that’s enough in other contexts, but in this sentence it clearly means but.

This is a classic Egyptian Arabic negative verb form.

It breaks down like this:

• ما ... ش = the Egyptian way to negate many verbs
• فهموا = they understood
• So ما فهموش = they did not understand

In other words, Egyptian often wraps the verb with ما at the front and ش at the end.

Because the verb already shows the subject.

The ending in فهموا / فهمو tells you it is they. So Egyptian Arabic does not need a separate pronoun here.

That means:

• فهم = he understood
• فهمت = I understood / you understood, depending on context
• فهموا = they understood
• ما فهموش = they did not understand

A separate pronoun such as هم could be added for emphasis, but it is not necessary.

Because colloquial Arabic spelling is often flexible.

In Egyptian writing, people commonly compress the plural ending plus the negative ش into وش. So:

• ما فهموش
• ما فهمواش

Both can be seen, and both represent the same basic meaning.

This is very normal in informal writing, subtitles, and texting.

الزباين means the customers, so it is plural.

The common singular is:

• زبون = customer

The plural زباين is a very common Egyptian colloquial plural. A learner might also see more formal alternatives in Modern Standard Arabic, such as:

• الزبائن
• العملاء

But الزباين sounds natural and everyday in Egyptian Arabic.

Because ال is the Arabic definite article, equivalent to the.

In this sentence, all of these nouns are definite:

• المدير = the manager
• المشكلة = the problem
• الاجتماع = the meeting
• الزباين = the customers
• الحل = the solution

So the sentence is talking about specific people and things, not general ones.

This is because of sun letters and moon letters.

In Arabic, the ل of ال is sometimes pronounced and sometimes absorbed into the next consonant.

• ز is a sun letter, so الزباين is pronounced ez-zabāyen
• ح is a moon letter, so الحل stays el-ḥall

So the spelling stays the same, but the pronunciation changes depending on the first consonant of the noun.

Because Arabic uses في more broadly than English uses in.

In many contexts, في can mean:

• in
• at
• during

So في الاجتماع naturally means at the meeting or in the meeting, depending on the English phrasing that sounds best.

Also, in normal speech:

• في الاجتماع often becomes
• ف الاجتماع or fil-egtimāʿ in pronunciation

Both are in the past.

• شرح = he explained
• ما فهموش = they did not understand

So the sentence is describing completed actions:

1. the manager explained something
2. the customers did not understand it

If the sentence were in the present, the verb forms would look different.

Yes, you can.

Both word orders are possible:

• المدير شرح المشكلة...
• شرح المدير المشكلة...

Egyptian Arabic very often uses subject + verb + object, which is the order you have here. But verb + subject is also possible and natural.

The difference is usually about style or emphasis, not basic meaning.

It is clearly Egyptian Arabic, or at least strongly colloquial.

The biggest clues are:

• بس for but
• ما ... ش negation in ما فهموش
• الزباين as a common Egyptian plural

A more Modern Standard Arabic version would be:

شرح المدير المشكلة في الاجتماع، لكن الزبائن لم يفهموا الحل.

So the overall meaning is similar, but the grammar and word choice in your sentence are colloquial Egyptian.