When a male presses his entire genitalia against a transparent, hard surface such as a window or a CD case. The resulting visual resembles a rat that has been crushed to death.
It is like mooning someone except with a dick and balls.
A female who damages her sexual partner's genitalia, specifically the testicular region, through overenthusiastic thrusting of the pelvis. This female is usually on top.
When a drunk old man takes his schlong out and rams it into a window while yelling out the phrase "Squished tadpole! Squished Tadpole!" Often done while over consuming cheap and hard alcohol.