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.

a new york fishbowl involves a woman wearing a dog's elizabethan collar and a snorkel while a group of men beat off into it filling it to the brim and then styling her hair in the latest guido-enticing new york fashion.

Noun.
To choke someone while holding there head in the toilette and fuck them in the ass.

Noun - fishbowler
One who does a pointless task in pusuit of a fruitless goal. Concept originally created in an irc discussion of a person on grouphug.org that admitted to putting his dick in a fishbowl. It is used primarily to indicate one that is begging for invites to a private website, which likely both has invites closed at the time, and another irc channel devoted to invites which has been ignored.

Verb - Fishbowling

A woman queefs in a bag or bowl leaving a fishy stench while fogging up the bag/bowl, almost immediately after, a man takes a deep sniff with his whole nose in the bag/bowl.

A place where if you put your keys, you receive a fun surprise for the rest of the trip!

When you are haveing sexy time with a femail and you cum in her eyes and then put a fish bowl filled with coffee on her head and push her down the stairs into 5 moby dildos