Bushy Park
noun
1
a lark, a spree. Rhyming slang, formed on the name of a park close to Hampton Court UK, 1859.
2
a woman's pubic hair. By extension, the shortened form 'bushy' is a pet name for 'the vagina', deriving from BUSH (pubic hair); possibly a play on the outer London beauty spot Bushey Park, source of the similar, now obsolete C19 phrase 'take a turn in Bushey Park' (to have sex) US, 1980