sand boil

Noun

 * 1)  An eruption of water through a bed of sand due, for instance, to seismic activity, or to differences in water pressure on two sides of a levee which causes water to penetrate beneath the levee.
 * 2)  A boil which forms when sand particles enter and irritate the skin.
 * 1)  A boil which forms when sand particles enter and irritate the skin.
 * 1)  A boil which forms when sand particles enter and irritate the skin.
 * 1)  A boil which forms when sand particles enter and irritate the skin.
 * 1)  A boil which forms when sand particles enter and irritate the skin.