shamcock shake 

The act of dipping one's penis into a McDonalds Shamrock Shake and then recieving oral sex.

Dude last night i gave Brittany a Shamcock Shake, my dick was freezing but it was so worth it.

shamcock shake by mrmrfresh April 10, 2012

Shamrock Shake 

The best possible item ever placed on the Mcdonalds' menu. People wait hours just to buy one when they start selling them the month before St Patrick's day. A green vanilla mike shake (which may or may not be more addictive than crack.)

Person X: What the hell is this line for at McDonalds?
Person Y: They released Shamrock Shakes, again!
Person X: Is that a Mexican thing?
Person Y: Irish.
Person X: Ahhhh...bless the Irish and their dairy treats!

Shamrock Shake by Philly1221 September 20, 2006

Shamrock Shake 

A special someone, who is a thicc chunky boy. With thicc calves.

shamrock shake

Shamrock Shake by Mcdonald’s menu April 23, 2019

Shamrock Shake 

to receive a hand-job in the bathroom of an Irish pub, or simply a hand-job given by an Irishman

Greg "Paddy O'Flanagan gave me a shamrock shake the other day."
Steve "You're a fag"

Shamrock Shake by lonnielassar March 2, 2010

Shamrock Shake 

When a woman (or man) dabs a drop of green food coloring on her tongue before taking a load of cum in her mouth
Swishes it around and spits out green

See that girl, she gave me a Shamrock shake on St. patty’s day last year

Shamrock Shake by Pizzadumpster March 8, 2019

Shamrock Shake 

An Irish handjob

I met a drunk Irish lass on St. Patrick's Day, and she gave me a shamrock shake.

Shamrock Shake by Lordwindowlicker August 5, 2012

Shamrock Shake 

When performing a four leaf clover using the mouth, and all four dicks cum at the same time.

Cindy was getting the ol' four leaf clover and ended up with a Shamrock Shake.

Shamrock Shake by Trent Gibbard January 7, 2020