Definition of "Rag" :
noun: a boisterous practical joke (especially by college students)
noun: a small piece of cloth or paper
noun: newspaper with half-size pages
noun: music with a syncopated melody (usually for the piano)
noun: a week at British universities during which side-shows and processions of floats are organized to raise money for charities
verb: break into lumps before sorting
verb: censure severely or angrily
"The deputy ragged the Prime Minister."
verb: harass with persistent criticism or carping
verb: play in ragtime
"Rag that old tune."
verb: cause annoyance in; disturb, especially by minor irritations
verb: treat cruelly