In academia, the practice of cramming information into one's cranium (scarf) just long enough to regurgitate it onto an exam (barf) in order to score a passing grade for the course.
Jude passed Physics the good old fashioned way, through sheer scarf-n-barf.
1. Jesus, Sally needs to stop scarf-n-barfing, it's not helping her figure.
2a. Jeff, scarfing-n-barfing your homework is not acceptable, do it over.
2b. Tom, it's Friday. Scarf-n-barf that work of yours, it's time to go to the bar.