steam boat 

1. to be very highly intoxicated on copius amounts of alcohol, to the point where you can just manage to walk

2. a chant which is shouted by yourself and a group of friends when you are leaving the pub/club/bar and are walking down the street, after a heavy drinking session

1. ah man, me and the lads had a great night, we where so steam boat it took me 2 hours to walk half a mile home.

2. me and the lads where shouting "STEEEEEEAM BOOOOOAT" all night last light, and we woke some old lady up!!

steam boat by yogigypsy October 16, 2009

U-boat 

A long and sturdy albeit plastic turd that bends in a U plugging the toilet when the moment off truth arrives.

Man I had to swab the deck after U-boat 7:17 left the dock.

U-boat by delmarskd! October 20, 2011

u-boat 

Large continuous dump shaped like a German WW2 submarine. Usually occurs the morning after a night of numerous beers followed by a curry

"Why were you taking so long in the bathroom?", "Jesus love take it easy, i just sunk a u-boat"

u-boat by Jimmy Somerville March 7, 2008

slow boat to china 

Describes an activity that although it takes up a great deal of time to complete, it's an enjoyable experience nonetheless, like oral sex when the girl is not in a hurry to finish.

When my old girl started to give me head, I was on a slow boat to china.

slow boat to china by xzybit January 3, 2006

Fan Boat 

V. The act that a person makes after encountering diarrhea and having rapid, uncontrollable flatulence in the presence of others. Can also be used as propulsion while walking. to fart uncontrollably

Brian and I were racing today, luckily I ate tacos last night and was able to fan boat past him.

Fan Boat by Fan boat willy October 22, 2011

war boat 

A Jamaican term for someone who loves to pick fights and/or jump into fights with someone else. Pretty much that they love to start 'war'

Zayn stans are always picking fights with OT4 stans! They are such war boats!
Why do you love fighting so much? You are such a war boat!

war boat by 1Dpls August 1, 2015

Tits on a boat 

like the terms tits on a boar, man, or board etc... the term "tits on a boat" is used to describe how useless or incompetent someone or something is.

Believed origins of the term:

1) in history it use to be considered unlucky and a bad omen to have a woman on board a ship.
2) the figure heads on the front of a boat (usually a woman with baring breasts) though aesthetically pleasing had no real use other then for superstition and aesthetic.

"your as useless as tits on a boat"

Tits on a boat by Felix Greene April 2, 2009