Saggy breasts that have succumb to the inevitable effects of gravity. While thin and tubular on top, the compounded collection of adipose tissue gives a bulbous, pock-marked appearance at the base.
A very French, romantic and rather graphic and imaginative way to tell someone he doesn't need to make a big fuss or get angry about something. Very useful for any occasion.
Large (pendulous) breasts swinging from side to side (like a pendulum) under a loose fitting shirt giving the appearance of two kids fighting under a blanket.
An action not unlike a Newton's cradle where balls of a similar size crash into each other and bounce back.