1 definition by MarvelousOnePak
When you are "friends" with someone you work with or go to school with but do not have contact with that person outside of the office/classroom.
Jim: Dude you're always talking with Ryan in class, do you guys hang out a lot after school?
Sean: Naw man, we're just part-time friends.
Sean: Naw man, we're just part-time friends.
by MarvelousOnePak February 26, 2010