Additional private Greek letter phrases.
 

(Sorry if the title isn't clear).

After being behind a car with a Kappa Alpha Psi License Plate holder that said "Phi Nu Pi" on the bottom, I was trying to remember other GLOs that have an *additional* Greek Letter combination that is public (say used to sign off forum posts.) with a private meaning.

The ones that I remember off the top of my head
*Kappa Alpha Psi - Phi Nu Pi
*Kappa Sigma - Alpha Epsilon Kappa Delta Beta

And from comments below from comments below to keep in one place
*Pi Kappa Alpha - Phi Phi Kappa Alpha
*Alpha Phi - Alpha Omicron Epsilon
*Kappa Delta - Alpha Omicron Tau

Not interested in meaning of the additional "phrase", but just interested in groups that have one.

Ours is Phi Phi Kappa Alpha

Alpha Phi has AOE and KD has AOT. Our formal sign off for letters to sisters is the sigma within a delta (also our new member pin). Not really a phrase, but the meaning is secret.

Kappa Kappa Psi has AEA, which is Alpha Epsilon Alpha.

Kappa Delta refer to AOT (English letters) not Alpha Omicron Tau.
Can't tell you any more than thar, but we definitely don't use the Greek letters.

Gamma Phi Beta sisters close letters with "In IIKE" (that's a Pi) which has a meaning known only to members. We can also choose to add enhancing lead-ins, such as "Love in IIKE" to add further sentiment.

Sigma Alpha Epsilon has Phi Alpha

I believe Delta Gamma has Tau Delta Eta?

Current List (since it won't let me edit the original :(
 

NIC
*Kappa Sigma - Alpha Epsilon Kappa Delta Beta (ΑΕΚΔΒ)
*Pi Kappa Alpha - Phi Phi Kappa Alpha (ΦΦΚΑ)
*Sigma Alpha Epsilon - Phi Alpha (ΦΑ)

NPC
*Alpha Phi - Alpha Omicron Epsilon (ΑΟΕ)
*Delta Gamma - Tau Delta Eta (ΤΔΗ)
*Gamma Phi Beta - in Pi Kappa Epsilon (in ΠΚΕ)
*Kappa Delta - AOT (English letters)

NPHC
*Kappa Alpha Psi - Phi Nu Pi (ΦΝΠ)

Professional
*Kappa Kappa Psi - Alpha Epsilon Alpha (ΑΕΑ)