(dated) A prank or practical joke. / (UK, Ireland) A society run by university students for the purpose of charitable fundraising.

A coarse kind of rock, somewhat cellular in texture; ragstone.

(in the plural) Tattered clothes. / A piece of old cloth, especially one used for cleaning, patching, etc.; a tattered piece of cloth; a shred or tatter. / A shabby, beggarly fellow; a ragamuffin.

(transitive) To decorate (a wall, etc.) by applying paint with a rag. / (intransitive) To become tattered.

(transitive, informal) To play or compose (a piece, melody, etc.) in syncopated time. / (intransitive, informal) To dance to ragtime music.

In tatters, having the texture broken. / Having rough edges; jagged or uneven / Harsh-sounding; having an unpleasant noise / Wearing tattered clothes. / Rough; shaggy; rugged.

simple past tense and past participle of rag

(chiefly US, Canada, transitive) To ridicule, to make fun of (someone).

(UK, slang, obsolete) Synonym of Rag and Famish (“the Army and Navy Club in London, England”)

(chiefly Britain and Ireland, university slang) An annual event in many universities where students engage in unusual activities to raise money for charity.