Is there a definitive spelling for the shortened version of “as per usual”?

A shortened version of the phrase “as per usual” is now used as slang when referring to something that is typical or expected, often in an exaggerated or hyperbolic manner. For example:

Bill: Mike is late, again!
Sara: As per usual.

But instead of saying “as per usual”, the slang version shortens usual to pronounce the first syllable only, which I lazily make an attempt to spell as “ujj”. (IPA /juːʒ/ ―tchrist)

And the question is. . . .

Is there a definitive spelling for the shortened version of “as per usual” — or, more specifically, for the shortened version of usual?

The reason this problem arises is that the consonant in the middle of usual - which phoneticians call the voiced palatoalveolar fricative, and which is written in the International Phonetic Alphabet (IPA) as [ʒ] - doesn't have a fixed representation in the English writing system. When it occurs in words borrowed from other languages, we usually keep the original spelling (luge, rouge, gendarme) and when it occurs in a native English word, we write it with an S (measure, usual, pleasure). In particular, it never occurs at the end of a native English word, only in loanwords like luge.

In any case, it's relatively rare in English (loanwords or no), so as English readers and writers we don't have much data from which to conclude what the "best" or "most common" way to write [ʒ] is.

Therefore, when truncations like as per usual -> as per yuʒ occur (a problem which, by the way, is not unique to "as per usual" - as this previous question reveals, the common slang phrase business caʒ for business casual has the same orthographic difficulty) the only unambiguous way to write it is to use that IPA character, ʒ.

Since, obviously, most people can't read IPA, the question boils down to "how do I write a sound that my language's writing system doesn't let me write?" You're stuck with a large variety of more or less confusing approximations:

• uzh / yuzh (my personal preference); zh is a logical way to write [ʒ] since it is the voiced counterpart of the English sh sound (in layman's terms, zh is to sh as z is to s).
• uge / youge / yuge, by analogy with rouge, luge, and (approximately) huge.
• and any of the other suggestions in the comments above

Ultimately, this question can't be answered without considering why and for whom you would write such a thing down, anyway. It's an almost exclusively spoken form. In those rare situations which would force you to write it - dialogue for a novel or screenplay, let's say - the most you could do is probably just choose one of the above options and hope your audience is familiar enough with the construction to figure it out.

There's no definitive spelling, but as per ushe is a common one with the benefit of being fairly unambiguous.

Alternatives include as per use, but that could be confused with "for each use", and as per uje, but that looks a bit odd.

The OED doesn't include either, but does note as per is also a shortened form.