wack
Concise Oxford English Dictionary © 2008 Oxford University Press:
wack1
▶noun Brit. informal used as a familiar term of address, chiefly in Liverpool.
– origin 1960s: perh. from wacker ‘a Liverpudlian’, of unknown origin.
Concise Oxford English Dictionary © 2008 Oxford University Press:
wack2 US informal
▶noun
- 1 a crazy or eccentric person.
- 2 worthless or stupid ideas or work; rubbish.
'wack' also found in these Oxford entries:

