splash
v.— «That also means no bathroom breaks unless the convoy stops to “splash,” the term for fueling up the Humvees with gas cans on the side of the road. Then the soldiers discreetly do their business standing next to their trucks. If they can’t wait, empty water or Gatorade bottles come in handy.» —“Essential, risky and boring—all at once” by Meg Jones Journal Sentinel (Milwaukee, Wisc.) Dec. 27, 2005. (source: Double-Tongued Dictionary)