paste your clipboard to a gist and copy the gist url to the clipboard

gistp.sh

gistp() {
  if [ -z "$1" ] ; then
    echo "Must supply filename for new gist"
    exit(1)
  else
    gisturl=$(pbpaste | gist -f $1)
    echo "Copying $gisturl to clipboard"
    echo "$gisturl" | pbcopy
  fi
}

First:
brew install gist
gist --login