A tool is someone that is kind of arrogant and like a douche or an a-hole. It is not what these other definitions say. PInk uses the term in "So What", she's talking about her ex. Who is not a poser but a jerk, to her anyway.
Pink is talking about her ex in this song. He's not a "poser" hes a jerk, to her anyway.
I'm gonna show you tonight
I'm alright
I'm just fine
And you're a tool so
So what
I am a rock star
I got my rock moves
And I don't want you tonight
I'm gonna show you tonight
I'm alright
I'm just fine
And you're a tool so
So what
I am a rock star
I got my rock moves
And I don't want you tonight
by j roper September 22, 2011
Get the Toolmug. A human with no definable personality outside of the current cultural trends who came to be through strenuous and repeated attempts to fit in with a particular, and particularly horrible, crowd. They make a mildly annoying impression, if any at all, and are unaware of themselves and their social context. A tool can also be a douche, jackass, or Chet, but not all douches, jackasses, and Chets are tools.
by annadoes March 28, 2016
Get the toolmug. Someone who, in a wanton nature, follows the status quo without question; even if the result of their actions undermine their character (or lack thereof).
The police officer was such a tool, he gave me a ticket for going 36 in a 35. He said, "Breaking the law is breaking the law".
by masterofsleep May 4, 2015
Get the toolmug. 1. A person, almost always a male, who tries (and believes he is) to be hard or cool by the way he dresses or acts.
2. A very ignorant person who is used to by others without knowing it.
2. A very ignorant person who is used to by others without knowing it.
1. Look at that tool in the tapout shirt, with a single ear ring and his hair gelled.
2. I feel bad for that guy, he doesn't know that his dream girl is just using him as a tool.
2. I feel bad for that guy, he doesn't know that his dream girl is just using him as a tool.
by austin precipitates October 9, 2011
Get the toolmug. Person 1:did you hear Hillary Clinton during the debates?
Person 2: yeah, what a tool! We need someone who's hip enough to bring Twitter to the oval office!
Person 2: yeah, what a tool! We need someone who's hip enough to bring Twitter to the oval office!
by Mr.Republican2016 November 7, 2017
Get the Toolmug. 
A tool is a person who is overly obsessed with their body image. Usually a man who feels the need to be ridicuosly ripped. A tool often gets around and has trouble committing to one woman.
by alinafu May 23, 2012
Get the Toolmug.