Top Definition
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
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×