The act of articulating a Facebook status update in which one's true intention is to see how many "likes" or comments he/she can receive. This is usually done by individuals with, but is not limited to, low self-esteem, boredom, and/or a feeling of little self-worth.
Gus- "hey look, Gamesradar published another 'Babes of the Week' article"
Harold-"Traffic fishing again?"
Arden- "They must be really desperate for ad-money this month"
To park a pickup truck with food in the bed in the middle of the slums and hide in the cab and when hobos get in the bed of the truck the driver speeds away, bringing the hobos with him for his own nefarious purposes.
When it is late at night (around 3am) and your intoxicants have worn off, and you are just a shell wandering or staring aimlessly at walls, like a fish in a tank. Also, to actually fishtank you cannot be aware you are doing it -- that would mean you're coherent.