Old Scottish, Northern English and Irish word.
Means to wander about aimlessly
"Yish, looking at that stravaiging bag head over there."
"How about I stravaig over there and rub my open wound on you?"
"Easy stravaiger, there's no need to get shirty, I was just making a comment on the aimlessness your existence."
"Tis true I suppose. Any chance of some money?"
"You give oral sex?"
"Buzzing cha, buzzing."