Ask Don Hopkins:

https://news.ycombinator.com/user?id=DonHopkins

I remember it as, "YOU FORTH LOVE IF HONK THEN"

This link I found seems to corroborate

http://www.drdobbs.com/blog/archives/2010/09/forth_love_if_h...

but the Wayback Machine is down so I can't check.

On reflection I think you are correct. Admittedly I have not done anything with Forth in quite some time.