Green’s Dictionary of Slang

Loretta Young n.

[rhy. sl.; ult. Loretta Young (1913–2000), Hollywood film star]

the tongue.

[Aus]Tupper & Wortley Aus. Prison Sl. Gloss. 🌐 Lorreta Young. Rhyming slang for tongue.
[UK]R. Puxley Fresh Rabbit.