Vrrt
"Vrrrt" is a term used by a unique group of individuals in Johannesburg, South Africa, known as the Boardroom Members, to call for a round of Suitcase Shooters. The origin of the term is not clear. However, it is suspected that the group in question, had got to the point where talking clearly had become a tad difficult. So it became easier to gesture to the bar-tender by waving an index finger in a tight circle, and simply saying "Vrrrt".
When you want to order a Suitcase (one shot Jack Daniels, one shot Passion Fruit Cordial) for a group, catch the bar-tender's eye and shout "Vrrt" while waving your index finger in the air, in a tight circle