Salada crackers, n. — Green’s Dictionary of Slang

Salada crackers n.

also Saladas

[rhy. sl. = knackers n.; ult. trade name of popular brand of low-calorie crispbreads]

(Aus. prison) the testicles.

1988		‘Siriusly’ Speaking in Just Us (H.M. Prison, Beechworth, Vic.) Dec. 27/1: salada crackersn.see niagara falls.
1990		Tupper & Wortley Aus. Prison Sl. Gloss. 🌐 Salada Crackers. The male genitals. Rhyming slang for knackers. Sometimes just Saladas.