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1.
1) an insult seldomly used (typically used by a person devoid of a remotely clever comeback or a person scrambling for a comeback)
2) a silly, fatuous, and/or insipid word stated after drawing attention on oneself by way of the start of a profound/intellectual comment (used in a comedic or puckish fashion)
3) a way to address someone similar to saying "hey buddy", but rather, "hey buttdick"
4) a childish compilation of two curse words into one
5) a compound word used to annoy someone demaning respect from the user: "Hey mom, buttdick"
Example for definition::
1) "Well yea, well... you're a, buttdick"

2)"Symbolically, your plight and your quixotic expectations of a quick-fix to all your problems represent... BUTTDICK"
by informed nigga December 01, 2004
 
2.
When you take a shit, the turd gets stuck and hangs out of your ass like a reverse penis
I was on the john last night and
I had a wicked Butt Dick hangin
by jackmeoffveryhard February 13, 2009
 
3.
to screw another person over, literally, in the butt.
dude, you totally just got buttdicked.
by travis earl doyle August 03, 2010
 
4.
Someone who is such a dick and an asshole that the two are combined for convenience and being able to kill two birds with one stone. Also, those that are labeled buttdicks are the kind of people who are so lame that it is not worth expending the mental energy to come up with two separate insults for their general state of being. Like my history, journalism, and public speaking teacher in highschool told me, "Why use two when one will do."
"I saw kip at the party last night. He was wearing his tevas with white socks, a tank top and some wrap around Oakley razors. He kept pulling off of a bottle of cheap tequila and slapping the ladies on the ass while saying, "hey babe, the name is Kip, in your case, you can call me the Kipper or something like that. Despite the fact that he is one of the biggest buttdicks on the planet, I noticed his mullett was filling in nicely."
by Martin Throttle November 02, 2006