صاحبي عايز يروح الجامعة بكرة.

It’s Egyptian Arabic.

A few clues:

• عايز is the everyday Egyptian way to say want / wants
• بكرة is very common in spoken Arabic for tomorrow
• The sentence has a natural spoken-Egyptian feel

A more Standard Arabic version would be:

• صديقي يريد أن يذهب إلى الجامعة غدًا

So this sentence is a good example of how people actually speak in Egypt.

صاحبي means my friend or my buddy.

It breaks down like this:

• صاحب = friend / companion
• ـي = my

So:

• صاحب → friend
• صاحبي → my friend

In Egyptian Arabic, صاحبي usually refers to a male friend.
For a female friend, you’d usually say صاحبتي.

In Egyptian Arabic, عايز is the very common word for wanting.

In this sentence:

• صاحبي عايز = my friend wants

It agrees with the subject:

• عايز = masculine singular
• عايزة = feminine singular
• عايزين = plural

So because صاحبي is masculine singular, عايز is the correct form.

You may also hear عاوز instead of عايز. Both are common in Egyptian Arabic.

Yes—in English we say wants to go, but in Egyptian Arabic you usually just put the next verb directly after عايز.

So:

• عايز يروح = wants to go

There is no separate word here for English to.

That means:

• عايز = wants
• يروح = he goes / he would go / to go in this kind of structure

This is very normal in Egyptian Arabic.

Because the subject is he: صاحبي = my friend.

يروح is the 3rd person masculine singular form, meaning he goes.

A quick comparison:

• أنا أروح = I go
• إنتَ تروح = you go
• هو يروح = he goes
• هي تروح = she goes

Since صاحبي is treated like he, the verb is يروح.

With راح / يروح in Egyptian Arabic, the destination is often said without a separate word for English to.

So:

• يروح الجامعة = go to the university / go to university

That is natural Egyptian Arabic.

You may sometimes hear a preposition in other contexts, but in a sentence like this, يروح الجامعة is very common and natural.

الجامعة means the university.

The prefix الـ is the definite article the.

So:

• جامعة = a university / university
• الجامعة = the university

In Arabic, places and institutions are often made definite in ways that may sound more natural than a literal English match.

In Egyptian pronunciation, الجامعة is usually pronounced something like el-gāmʿa.

Also note:

• the letter ج in Egyptian Arabic is usually pronounced like g in go

So الجامعة does not sound like Standard Arabic al-jāmiʿa in everyday Egyptian speech.

بكرة means tomorrow.

It often comes at the end of the sentence in everyday speech:

• صاحبي عايز يروح الجامعة بكرة

That word order is very natural.

You can move it for emphasis, though:

• بكرة صاحبي عايز يروح الجامعة

But the version with بكرة at the end is simple and common.

Because Egyptian Arabic very often uses subject-first word order in everyday speech.

So this structure is:

• صاحبي = the subject
• عايز = wants
• يروح الجامعة = go to the university
• بكرة = tomorrow

This makes the sentence feel very natural and conversational.

Arabic can also use verb-first patterns, but this noun-first pattern is extremely common in spoken Egyptian.

It would become:

• صاحبتي عايزة تروح الجامعة بكرة

Changes:

• صاحبي → صاحبتي = my female friend
• عايز → عايزة = feminine
• يروح → تروح = she goes / to go for a female subject

So the sentence has to show feminine agreement.

A helpful pronunciation is:

• ṣaḥbi ʿāyez yirūḥ el-gāmʿa bukra

Very roughly for an English speaker:

• صاحبي = SAH-bi
• عايز = something like AA-yez
• يروح = yi-ROOḥ
• الجامعة = el-GAM-ʿa
• بكرة = BUK-ra

A few important notes:

• ح in صاحبي and يروح is a breathy Arabic ḥ, stronger than English h
• ع in عايز and الجامعة is a deep throat sound that English doesn’t really have
• ج in Egyptian Arabic sounds like g, not like English j

In Egyptian Arabic, صاحبي most commonly means my friend, my buddy, or my pal.

Depending on context, صاحب can have other meanings in Arabic, such as companion or even owner in different situations, but in everyday Egyptian speech, صاحبي is very commonly understood as my friend.

So for this sentence, the natural reading is simply my friend.