Green’s Dictionary of Slang

an excl. implying great anger, surprise, amazement, envy, etc.

1959		A. Salkey Quality of Violence (1978) 75: Rawtid! It have a Jesus Christ on the Cross.
1980		M. Thelwell Harder They Come 150: ‘Rahtid!’, they breathed, as Jose swung the bike around.
1983		C. Knight We Shall Not Die 51: ‘Rhatid!’ he exclaimed to himself.
1991		L.E. Adams Jam. Patois 60: Raatid!: a common mild expletive of surprise or vexation, as in to raatid!
1994		M. Montague Dread Culture 132: Rahtid! But youthman, yuh get big.
2005		Jade LB Keisha the Sket (2021) 87: ‘Rahhhtiddd. Hes sexxxc’ I thoought.
2018		Unknown T ‘Mad about Bars’ 🎵 How could the feds try lock man for eighty hours and dat? / Rhaatid, it's mad.