dip·sy-doo·dle 
(dĭpsē-ddl)
(dĭpsē-ddl)intr.v. dip·sy-doo·dled, dip·sy-doo·dling, dip·sy-doo·dles
Informal
Informal
To move in or follow a zigzag course.
[Alteration of dipsy-do, baseball term to describe motion of a screwball, from DIP.]