the official ideas of a group (usually political) that must be followed by all members of the group
The members of the political party were forced to follow the party line on most issues.
Celebrities Pulling Weird Faces
Confused with what your award is for, Miley? Its MTVs award for video of the year 2014, you won it for your video Wrecking Ball. The controversial video had many people pulling a face just like this.