J.D. and Turk first met in college when they were assigned to be roommates. Flashbacks of their activities in college, generally exaggerating their ridiculous styles and fashions, are a recurring gag on Scrubs.
Spence helps J.D. figure out how he will style his hair - mouseing the crap out of it. ("My Dream Job")
A dorm buddy asks for help moving, and J.D. eagerly volunteers. ("My White Whale")
J.D. and forget the tickets to a Chicago Bulls game to see Michael Jordan, and Turk pulls out all his hair. ("My Fault")
J.D. and Turk chill on the roof at college with a girl and their friend 'Shinski'. Shinski falls off the roof when J.D. throws a beer at him. ("My Last Chance")
J.D. & Turk recall different accounts of when Turk slept with his old girlfriend Stacy Blue during college. ("My Fishbowl")
Turk, J.D., and Ricky (A.K.A. Caramel Bear), pull a prank with disastrous consequences.
J.D. and Turk ride a tandem bike on their first day of med school, while denouncing the cooler kids as "losers" and "nerds." ("Our First Day of School")