Definition of shoat. : a young hog and especially one that has been weaned.
Junior Enlisted in the Army - Privates and Specialists - are promoted automatically based on their time in service and time in pay grade. Privates (E-1) are promoted to Private 2nd Class after completing six months of service and PV2's are normally promoted to PFC when the have 12 months' time in service and 4 months' time in grade. In general, Soldiers earn the rank of Specialist (E-4) after having served a minimum of two years and attending a specific training class.
An E-1 can get promoted to Private (E-2) with only 4 months TIG with a waiver. An E-2 can get promoted to PFC (E-3) with only 2 months TIG and 6 months TIS with a waiver. An E-3 can get promoted to SPC (E-4) with only 3 months TIG and 18 months TIS with a waiver.