someone who just sucks ass, someone no one likes, someone that everyone who wud wanna knee right in the balls!
"Just cause i love fall out boy doesnt mean im a buttshitfaceass!"
"Yes it does"
"I think tony hawk is overrated, and ryan sheckler is def not a pussy, and he is better than mullen and haslam!"
"Go suck suck major cock, u dick lick, stupid buttshitfaceass!"
A word that pertains to someone or something that "kicksbutt".
However, recently, the word has devolved to be used as a noun, adjective, verb, and even an idiom. In reality, buttkicker is simply the grammarically incorrect way of saying "kicks butt".
Sam: When your friend tries to make good roasts but then ends up failing: buttkicker.
Tom: STFU Sam you degenerate that isn't how you say it.