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1.
one who latches on to someone superior to them (the hull)
short for barnacle
can also describe an opponent easily beaten.
thanks, barn, for the bye.
that barn gave him everything he needed for PTNO
by Xian November 14, 2003
 
2.
Barn is a term used by collectible card gamers. It is short for barnacle. A barn is someone that latches on to someone they admire or aspire to be like. The alpha male/female (hull) in any group will have many barns. The barns will flatter their hull and do their hull's bidding.
"Ever since I won cash on the Magic Pro Tour, I have infy barns"

"These barns are latching on to the stevedore of my success"

"I got this super rare card for free from one of my barns."
by nikekalami December 14, 2007
 
3.
The groin and all parts associated with the groin. includes all words which make it sound terrible, including, soupy, dirty, sloppy, swampy, wet, flooded, firey, untamed. can be combined with yard to imply general area.
Nyssa has a soupy barn.
by DaveOwenLiamJayNyssaJessBeebs February 16, 2010
 
4.
An all around inferior person that latches onto a hull and follows them around, doing odd jobs, hoping to be thought of as cooler because of their association with their hull.
1. Chris Cojocar
2. Adam Heis
3. cujobyte23
4. Johnny D
by Devin Davidson July 19, 2004
 
5.
1) to send an elecontronic message to a friend making that friend laugh uncontrollably and conspicuously at an inappropriate and embarrassing time and place, ie when he is in class, the law libary, or when his wife is trying to sleep.

2) the act of laughing uncontrollably and conspicuosly at an in approritate time upon reading an elecontronic message
Wurgle: Man, i didnt mean to barn you with that IM in class.

Tex: Yeah, but damn, i barned big time. I'm sure the professor saw me!
by spampasourus July 21, 2009
 
6.
An agricultural building used for storage. It must be covered and it MUST be red.
Guy 1: Hey, wanna go chill at the barn?

Guy 2: the barn? is it red?

Guy 1: no?

Guy 2: then it's not a barn!
by Kanook April 12, 2007
 
7.
a person who is a tool to the highest degree, a leaky douche bag (metaphorically of course)
Bill talks about the local music scene and laughs at those Geico caveman commercials. He's such a fucking barn.
by Ottag Trebor July 20, 2011