The other kids 'ragged' [='teased, razzed'] him for having a crush on the teacher.
The other kids were always 'ragging on' me because I wasn't good at sports.
a homeless person wearing 'rags' = a homeless person (dressed) 'in rags'
(..) that's a reasonable scare. You know, I get scared for things that don't make sense at all, like... Clowns, with red noses, or like the rag that use to wipe on table. when you finishes eating, like a.. chain restaurant. - Really? - Look, the point is I'm here for you, okay? (..)2009 Zombieland