There are 3 results of your search for ronnie.
ronnie
noun a stone or pebble. Compare boondie2, brinnie, gibber, gonnie, goolie, yonnie.
ronnie
sexual intercourse - Derived from rhyming slang Ron Coote (a famous rugby league player) for a "root": "How did you go last night?" "Yep, good, got a ronnie."
Ronnie
In Melbourne in the early 1970's I also heard bleached dogs poo referred to as a "Ronnie". Dogs egg/barkers egg/Ronnie Barkers egg/"Ronnie" for short. Compare barker's egg, barker's nest.