A Coulthard is someone who is generally very quiet and relaxed, but that has sporradic bursts of energy, at which time they
will usually punch someobody, throw something, or
maybe even kill those around them. Once
said act has been commited by a person, all friends in the vicinity must immediately yell "Coulthard!!"
It also is used when reffering to someobody that is acting like they are cool. Coincidentily, if you
put thard after anything that rhymes with "COOL" it sounds awesome.
"Dude! You just threw that
orange" Person 1
"What a
fucking Coulthard!" Person 2
"Check out that Coulthard sitting on the Stoolthard. That Coulthard loves to swim in the Poolthard. I
hope he doesn't beat me with that Toolthard. He's just too cool for Schoolthard."
etc.