The teacher is complaining that the students were late for school - 'out of area at the pledge of allegiance' - and that if they carry on like this 'I could lose my job, could y'all care less?' After the second boy's second swat, he says 'Get your ass down there! Pull them pants up!'. UPDATE 1: A reader familiar with the local culture has kindly explained that the language in use 'is a very thick mashup of southern accent and African American speech'.
Most are wearing what passes in America for a school uniform, with khaki pants. The atmosphere seems excessively raucous and disorderly, but the teacher is completely serious, and these are severe punishments despite the seemingly inappropriate informality of the occasion. In this clip, several young men aged maybe 16 to 18, probably in 11th or 12th grade, are assembled in a hallway at a high school in Louisiana to watch three of their number bending over for three hard licks each with the paddle. United States - Nine real paddlings in progress.
SCHOOL CORPORAL PUNISHMENT Video clips: USA: real school paddlings. SCHOOL CORPORAL PUNISHMENT: Video clips - United States real-life paddlings, page 1