Where Does the Expression Frogmarch Come from?
Frog-March (N.) Also Frog's March, 1871, a Term That Originated Among London Police and Referred to Their Method of Moving "A Drunken or Refractory Prisoner"...
How do you Frogmarch someone?
to force someone who is unwilling to move forward by holding the person's arms behind their back and then pushing them forward: He was frogmarched off by two police officers.
What does frog matched mean?
To force (someone) to walk forward by pinning the arms and pushing from behind. [From earlier frog's march, a police method of carrying a drunken or unruly person, who is suspended face downwards above the ground by four police officers each holding one limb and carried in a splayed position resembling a frog.]