I'm familiar with the above saying, after going to college in Santa Cruz, California. The others on the site are all new to me.
Origin: Ann Arbor, Michigan, USA (most specifically the University of Michigan campus) Meaning: “It means we’re starting things late."
You can get involved in this project! Just email firstname.lastname@example.org with the local saying, the meaning/history and the town it is are used in.
all photos/origins/meanings from neck of the woods.