Green’s Dictionary of Slang

1. tea.

1935

‘George Orwell’ Clergyman’s Daughter (1986) 153: Come on, ’oo’s for that drum of riddle-me-ree?

2. an act of urination [pee n.¹ (2)].

1983		R. Aven-Bray Ridgey-Didge Oz Jack Lang 41: Riddle Me Ree [...] pee.
1992		R. Puxley Cockney Rabbit.

3. the number three.

1983

R. Aven-Bray Ridgey-Didge Oz Jack Lang 41: Riddle Me Ree Three.