I wrote this haiku a couple of years ago to describe the software I was working on and it seems pretty appropriate to Wabi Sabi. For non-software developers spaghetti is an adjective used to denigrate code whose logic seems to go in all directions at once with no hope of untangling it.
Code in Haste no Pattern
Spaghetti's not food for the brain
The mind recoils, I weep