'Have you drowned your shamrock yet?'

From the Kansas City St. Patrick's Day Parade website:

"Sure," he told the paper, "the first thing we did on St. Patrick's Day morning was to 'drown the shamrock ... Did you never hear tell of 'drowning the shamrock'? 'Twas an old custom and gone for many a day, like all the good old customs. When you met a friend for the first time on St. Patrick's Day in the morning, you'd ask him, 'Have you drowned your shamrock yet?' Well, maybe he had, but to be genial he'd say no, anyway, and in we'd go to the most convenient fountain of potheen and each of us would take the sprig of shamrock from our coats and drown it in the drink while we gave the old Irish toast:

Here's to the land of the Shamrock, so green!
Here's to each lad and his darling colleen!
Here's to all those we love dearest and most!
And God save ould Ireland' that's an
Irishman's toast!