wazoo
Concise Oxford English Dictionary © 2008 Oxford University Press:
wazoo /wəˈzuː/
▶noun N. Amer. informal a person's bottom.
– phrases
up (or out) the wazoo in great quantities.
up (or out) the wazoo in great quantities.
– origin 1960s: of unknown origin.
'wazoo' also found in these Oxford entries:

