A German Fire Drill: Four to Six people gather in a circle in a dark concrete room wearing sweaters woven out of each others pubic hair (or darkish gray spandex, depending on how much time they had) subsequent to each consuming a large portion of syrup of ipecac. The participants in the fire drill wait until the ipecac has its effects at which point they ferociously vomit on each other, creating a shower-like fountain of ipecac-scented vomit. The sound created by the people vomiting has been sometimes described as sounding like a german fire alarm, thus giving the practice it's name. Special attention is generally taken by participants to direct a majority of the vomit on the host's genitalia, as an act of courtesy and gratitude.
WE-OOH WE-OOH WE-OOH
What is that noise Sharon?
My son and his friends are having a German Fire Drill upstairs, sorry.
When one actually "tosses their cookies" and a full, undigested cookie comes out: a vomit cookie is created. The victim is obligated to eat the cookie by an unspoken oath, due to the extreme paradox of the situation. It is collectively undecided as to whether or not it is actually desirable to create a vomit cookie.
Steve was particularly dismayed when he tossed out a real vomit cookie. He regretted it severely, although he was kind of impressed at the same time.