David’s Dictionary for the Internet Age: Relike

Relike (verb)

To unlike and again like a post previously-liked post, e.g., picture, text, or video, on a social networking site in order to produce a notification for the target, e.g., content owner or someone tagged in the post, and remind them that you still like the post.  The relike is commonly used as a derpy way to tell the target that the person performing the relike as lubby dubby feelings for the target.

Example usage:

I am hopeless.  The best I can do is occasionally relike my favorite photos of him until he maybe gets the hint.