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A purple mutant dinosaur that tries to make kids dance and sing.
Little kid: I am going to watch Barney. Come with me!
Teenager: DON'T WATCH IT!!! Baney is a mutant dinosaur and you will die!
by My name is tilatequilafan December 15, 2007
The imbecile that invented this song:

"I love you, you love me,
we're a happy family,
with a great big hug
And a kiss from me to you
Won't you say you love me too?" No.
I hate you, you hate me,
let's all go and kill Barney,
with a knife and a gun,
and you stick it up his bumb,
now the kids are having fun.
by Skie_017 September 27, 2006
A High end department store, originating in Manhattan. Sells the likes of Yves Saint Laurent, Fendi, Chloe, Marc Jacobs and Ksubi.

Also referred to as Barneys New York.
I saw a pair of $3000 jeans at Barneys in NYC, and there was nothing special about them. Are people nuts?
by Maybelline October 06, 2007
n. A somewhat derogatory term for a Harvard University student, heard mostly in the greater Boston area; from "barnyard," the old term for the land which Harvard now occupies.
the films, "Good Will Hunting," "With Honors," etc.
by wayfarer April 27, 2005
Barney is a big purple dinosaur who stars in the popular kid's show "Barney" ((Of course >_>;)) He teaches kids, along with Baby Bop, DJ, and the group of children on his show, basic pre-school level skills and life's lessons. Barney is loved by kids and parents, but no one inbetween x_x. He is also famous for his "I love you" song.
Preschooler: Mommy Barney's on!!
Mother: Yaay! *sings the I love you song*
Middle school kid: Screw this. *turns channel to MTV*
by Sailor Star February 21, 2005
Someone who is fat, most probably gay as well. Little stamina, big stomach. may claim big boned but no... just fat
Person 1 - "Wow he's really putting away the cakes"

Person 2 - "Yeah he's such a Barney"
by the lobster king June 02, 2010
A stupid purple dionasour benr on taking over the minds of little kids.
My sister did a barney yeterday.
by Mister bunnywiggles February 26, 2005