Green’s Dictionary of Slang

(Aus. prison) an excl. of satisfaction at another person’s misfortune.

1990

Tupper & Wortley Aus. Prison Sl. Gloss. 🌐 Suck-O. Exclamation of satisfaction in someone else’s misfortune. Equivalent to ‘bad luck’ when used ironically. Originates from juvenile institutions. There is a hand signal equivalent involving rotation of the open palm.