Quarterback's call

• "___ two three four" (military cadence)
• Drill sergeant's syllable
• Marching start?
• "___, two, three, four..."
• Drillmaster's bark
• Military drill syllable
• "___, two, three, four!" (marching words)
• "Careful!"
• "___, two, three, four!" (marching syllables)

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
hep \hep\ (h[e^]p), interj. A call used by drill instructors to count cadence during marching; used identically to hut and hup .