frig-up, n. — Green’s Dictionary of Slang

frig-up n.

also frigg-up

(orig. Aus.) a disaster, a blunder, a mess.

1941		Baker Popular Dict. Aus. Sl. 30: Frigg-up, a confusion, muddle.
1966		Baker Aus. Lang. (2nd edn).
2013		forum.teksyndicate.com Mar. 🌐 Well, that was a frig-up.