A slang term referring to drinking a Shamrock Shake from Mcdonalds, which only has Shamrock Shakes for a month around St. Patricks day.
Dude, last night we went shamming, and it was fucking great man.
Prices shown in USD.
Type your email address below to get our free Urban Word of the Day every morning!
Emails are sent from email@example.com. We'll never spam you.