Ukrainian Landmine 

Taking a crap in a person's slippers so that when they put them on in the morning, the landmine goes off.

I just stepped on a Ukrainian Landmine

Ukrainian Landmine by El Gringo the third March 8, 2009

Ukrainian Landmine 

When You Leave a turd in the microwave for a long period of time so that when the person opens up the microwave, the turd explodes, like a landmine.

Jimmy: Do u smell that?
Tommy: Ya man. It smells like a Ukrainian Landmine!

Ukrainian Landmine by BIG C aka the coolest kid evar December 6, 2010