Someone who is constantly lying. Making up stories to make themselves look better.
Girl 1: I met this guy last night, he said he was a FBI agent on a undercover mission.

Girl 2: No way, he's totally a big fish.
by Royalbluearts June 15, 2018
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The best band ever if you are in high school and have never heard good music.
A: Remember how you used to like Jimmy Eat World?
B: Yuck.
A: Whatever happened to them?
B: I don't know but Reel Big Fish stole their shtick.
by Internetted October 4, 2009
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A terminal disease that causes an individual to die of heart failure due to his/her enormous height.
David is pretty fucking tall and he's going to die soon," said Jeff, the coolest kid around.
by Superflylemonaid February 23, 2005
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When someone is the most skilled at an activity out of a relatively small or otherwise novice group of individuals in regards to said activity. Often used to denote that the "big fish" is not as skilled as those inside of the "small pond" would make it appear. Commonly used as an insult to the person being described.
Jim: I am the smartest one in my class!
Hank: Yeah, but you go to community college so... big fish small pond.

Sally: Laqueesha is the best prostitute I know!
Susan: That's because she lives in Old Lyme. If she lived in Compton she wouldn't be in the big fish small pond scenario.
by MrJackStankyLegs May 19, 2010
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Ruining the "food chain" by eating all the big animals to ruin the food cycle.
I just did some big fish eating all over those bullys, now the nerd will flourish!
by Seenus September 2, 2003
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A shit of both volumetric and cohesive magnitude that terminates with a blunt end upon exiting the anus, leaving little if any residue in its wake.
Dude, I thought my crap du jour would be a total dumpgasm. But since I snapped off a big fish, I won't be needing the toilet paper after all.
by Dr Ike August 9, 2011
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A manoeuvre performed when you're on a roundabout and a large vehicle (van/lorry) blocks your vision. When it pulls out onto the roundabout, you pull out alongside it, even if you cannot see the traffic on the other side. Called 'big fish little fish' because it looks like a little fish swimming by a big fish in the sea.
Dad: I can't see a damn thing round this lorry

Me: Dont worry, just do the big-fish-little-fish
by Georgieeeeeee October 6, 2013
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