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1.
The minty fresh breath that one experiences when belching after the consumption of a Shamrock Shake. The Shamrock Aftershock is often an unexpected yet pleasant minty surprise.

Originally found at www.primakow.net/evan/
Dude, I think I drank my shake to fast and I feel a shamrock aftershock coming.
by Trayf March 02, 2009

Words related to Shamrock Aftershock

belch burp mcdonalds shamrock shamrock shake