Click the “Connect” tab on your Twitter toolbar, and then select the “Mentions” tab. Find the mention you want to remove from your list, click “More,” and then select “Report Tweet.” Select a reason for reporting the tweet. Select “Spam” if the other person is engaging in spam-like tactics, such as sending unwanted messages or invitations, posting repeatedly about the same thing or if you suspect the tweets are from a spam bot. Select “Abusive” if the tweet is targeting you personally for abuse or harassment, and then fill out a form describing the abuse. Select “Block” if you want to eliminate all the user’s old tweets from your mentions list. Click “Submit” to remove the mention from your list. Writer Bio

How to Delete Old Mentions on Twitter - 79