You sacrifice footing for a two footed kick, hence you drop.
To me that can only be a run jump kick drop, or maybe a jump kick drop. In either case I think the word drop is unnecessary. Kind of like saying “kick then put your foot back down.”
Yep that's usually what a drop kick is.
THIS is where the expression came from:
This guy was apparently a great American hero. Both on the gridiron for Notre Dame and during WWII as a government spy.
"Savoldi was approached by the U.S. government in 1942 about joining the war effort in an espionage role. He was chosen (for the OSS, precursor to the CIA) due to his fluency in multiple dialects of Italian, his expertise in hand-to-hand combat, and his deep knowledge of the Italian geography—including the interior of Benito Mussolini's compound."
One of his missions involved extracting an italian engineer from German occupied Italy. Said engineer "was the inventor of the highly effective magnetic trigger used in the Silvrifici Italiano Calosi (SIC) torpedo, which the Germans used extensively.
Also: "Savoldi spoke Italian in several dialects as well as French, Spanish, and some German, and his dangerous work behind enemy lines was highly regarded according to several, now declassified, documents. "
Read more about him here : https://en.wikipedia.org/wiki/Joe_Savoldi#Notre_Dame
And he was only well known and celebrated for being a pro-wrestler.
"Savoldi agreed to meet (World champion Ed "Strangler" Lewis) and Sandow (a promoter) the following day at a local gym, and after an informal tryout in which Strangler Lewis proclaimed Savoldi the strongest man he had ever wrestled."
He died at 65 of a heart attack, living in self-imposed obscurity as a high school science teacher. At 54, he had gone back to school and finished his college degree and successfully pursued his last ambition.