A foam sprayed on to a soccer pitch as a temporary marker, especially in order to mark out a line which players defending a free kick must not cross before the kick is taken.
out comes the vanishing spray, as the referee prepares the ground for a free kick
Definition of vanishing spray in US English:
vanishing spray
noun
A foam sprayed onto a soccer field as a temporary marker, especially in order to mark out a line which players defending a free kick must not cross before the kick is taken.
out comes the vanishing spray, as the referee prepares the ground for a free kick