john: did you see that serial chalker feverishly scrambling to evade the law on elm last night?  greg: must have missed it
an individual known to frequently portray their thoughts and beliefs on civil structures via the chalk method (usu white chalk)
"john: did you see that serial chalker feverishly scrambling to evade the law on elm last night?  greg: must have missed it" What is the definition of "serial chalker"?