When a motor vehicle's windows have absolutely no tint on them. The windows are so transparent to where the driver and passenger(s) are completely visible to people outside of the vehicle.
To 'knock over the fishbowl' is a euphamism for failing a 'girlfriend test', where your girlfriend sets up a test to ensure that you are committed to the relationship.
Alice invited me over to her apartment. Turns out my girlfriend was waiting there... Way to knock over the fishbowl.
The act of ejaculating into one's fishtank...waiting patiently for the fish inside to consume your man chowder, then proceeding to fillet said fish into sushi, serving the meal to an unsuspecting 3rd party (e.g. unfaithful girlfriend, douchey best friend, housemate, etc...)
A: Shanna wouldn't take Tim to taco belllast night, so he totally gave her the Tokyo Fishbowl tonight!