brown trout roundabout 

is the act in which, usually a mariner forcefully inserts a large fish hence the brown trout part into, usually a virgin and twists so as to cause excrutiating pain to her

mariner: i got totaly wasted last night, went to the local village and gave the youngest i could find the old brown trout roundabout!!

brown trout roundabout by jake brown11 December 31, 2007

Brown trout

similar to the blumpkin but opposite. a guy eats out a girl while the girl is taking a dump.

Phil just gave veronica a killer brown trout.

Brown trout by Badass123432344 February 22, 2011

mouth or trout 

Short for "shut your mouth or feel like a trout" which is a derivative of "You had better shut up unless you want a pocket full of water"

Hey P why don't you hurry up?

P: "mouth or trout"

mouth or trout by cb February 20, 2003

drought trout

the act of turning off the water to a toliet, flushing out what's in the bowl, and leaving a big steamy dump for your roommate to find. practical joke, a.k.a. dry bowl.

"i wanted payback on pete for owning me last saturday so i gave him a drought trout"

drought trout by vinny the fireman May 23, 2007

Speckled trout 

A nasty dick covered in herpes sores.

Dude, she messed with that guy. He has a bad speckled trout!

Speckled trout by IrishTexan January 5, 2009

sucker trout 

A fish that is caught while fly fishing that is mistaken for a trout, even after it is pulled in. only upon closer examination is the realization made that it is indeed not a trout at all.

I GOT A TROUT!!!

That trout sure has a funny looking mouth.

DAMNIT!

sucker trout by Shatteredhelix September 1, 2005

Brown Trout

An ugly girls pussy.

A girl walks past: "Trout! Euurgh, that's definately Brown Trout!"

Brown Trout by DJ Harman-e March 11, 2009