Filtering Google Analytics language referral spam
Some traffics stats spammers target the Language field. This may appear like so:
This can be removed in Google Analytics like so:
Go to Audience > Overview > All Users
Click New Segment
Go to Advanced > Conditions. Change Include to Exclude.
Go to Add Content > Users > Language
Type in the keyword you want exclude, for example: trump
Give the filter a title, and click Save.
This filter can be used as a default view.