bastardry

[ bas-ter-dree ]
/ ˈbæs tər dri /

noun Australia and New Zealand.

unpleasant, often aggressive behavior.

Origin of bastardry

1635–45, for earlier sense; bastard + -ry

British Dictionary definitions for bastardry

bastardry
/ (ˈbɑːstədrɪ, ˈbæs-) /

noun

slang, mainly Australian malicious or cruel behaviour