ragga; ragamuffin; raggamuffin
noun a ruffian, usually of West Indian racial origin. Originally a West Indian and UK black term with an approving tone; probably derived from the conventional sense of a 'raggedy' (a disreputable person); ultimately from Ragamoffyn, a demon in the Middle English poem 'Piers Plowman' by William Langland (perhaps 1330–86). The derivation is likely to be influenced by Jamaican 'raga-raga' (ragged) and 'ragamofi' (ragged clothes)
UK, 1996