Aussie version of "Holy Moly" or variants. Slightly archaic/rural (read: Westie/Bogan etc), but still sometimes used by kids in front of Authorities. Also spelt "hoolEy doolEy"
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."