An irish slingshot would be used in the situation that you just received bad head. First you would remove your dick from her mouth, then you would put the tip of your index finger on the tip of your dick. You would then pull sideways away from her face, and then release and watch all hell break loose! The head of your dick should then slap her in the face! leaving the imprint of almost a shamrock on her face.
Dude my friend pulled the irish slingshot on his girl last night.
by n!(k_0Rt!z February 12, 2009