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.
Pressing your junk against a window looks like a squashed rat.
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.
Someone has delusions, of grandeur, of being an artist, of being captain of the universe, etc., then whomever presents reality over and over until the delusion has been eliminated.
Once Oscar realized he wasn't an artist and his video game playing was vastly overrated in his mind, he stopped calling his mother a dream squasher and realized she was a delusion squasher, and that he had to get a real job