Buttleg is the conjunction of the butt and the leg and is a term that is used when one cannot identify and pinpoint an area that is all butt or all leg. There is often confusion as to where exactly the butt joins the leg, thus the necessity to explain and name this often mysterious region is of utmost importance. On occasion, after a wet fart for example, a slippery area spreads to and past the butt to the high leg, reminding the sufferer that he or she has now entered the buttleg zone, and is therefore in a serious and unyielding vicinity that requires immediate medical attention. In most territories of the united states and the world at large, buttleg is pronounced in a quick and sharp fashion, and the "leg" part of the word is pronounced "leekg" due to its eastern European origins...
Someone who overestimates himself, believing himself to be something that he is not.
Origin: A friend of mine thinks he can "sing like a lark" but he sounds like ass.
Jonny is such a Buttlark, he cries like a baby, but he thinks he is really tough.
Man 1: Dude, there was a cheerleader in the guys locker room
Man 2: Wait what?
Man 1: Yea, she took the whole football team up the ass, she blew out and everything Man 2: *shudders* Ugh.. thanks for the mental image of buttlard man