The one person out of a large group of friends who does not drink, do drugs,is the designated driver,attends Christian Camp,and plans to save sex for the right time.
Kelly: Hey, we're getting smashed tonight, Aiight?
Trishelle: Chyeah...Oh wait, someone needs to be the Designated Driver!
Kelly: Dont worry, we'll bring Sarah.
Kelly: Cause she's our abstinant friend.