The German S-mine, also known as the "Bouncing Betty" on the Western Front and "frog-mine" on the Eastern Front, is the best-known version of a class of mines known as bounding mines. When triggered, these mines are launched into the air and then detonated at about 1 meter from the ground.

Why is it called a Bouncing Betty?

The mines were produced in large numbers and planted liberally by defending German units. ... The S-mine acquired its odd nickname "Bouncing Betty" from American infantrymen. The S-mine had a great psychological effect on Allied forces because of its tendency to maim, rather than kill, the infantryman.

What is a Bouncing Betty in cod?

The Bouncing Betty is a proximity mine unlocked at level 28. It launches into the air before detonating, and can be avoided by crouching or going prone.