The goose step is a special marching step performed on formal military parades and other ceremonies. While marching in parade formation, troops swing their legs in unison high off the ground, while keeping their legs straight and unbent.
http://en.wikipedia.org/wiki/Goose_step
Μήπως ξέρει κανείς (Ζάζουλα;) αν υπάρχει αντιστοιχία στα ελληνικά;