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.
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.
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.