The Fry Street Crawl is a delightful birthday events for (mostly young) people who love to get drunk!
The name refers to Fry Street, an area replete with popular bars. On your birthday, you are given one free shot per bar. Because of this, people will "crawl" (presumably unable to walk, from so much drinking) from bar to bar, taking shot after shot, until they vomit (which is admittedly better than alcohol poisoning).