hashtag

1. (Internet) A metadata tag, signaled by a preceding hash sign (#), used to label content.Examples: "I support the hash tag convention: http://tinyurl.com/2qttlb #hashtag #factoryjoe #twitter"; "You can also search for a hashtag by typing a topic (without the #) in the search box and clicking Search."; "While hashtags aren't formally part of Twitter, some clients, such as Tweetdeck, will persist hashtags across replies to create a sort of message threading."Internet

2. (Internet, metonymic, informal) The hash sign itself, especially when used as part of a hashtag.Examples: "I sound like a shitty mother and wife. Or at the very least an inadequate wife and ungrateful mother–which is in stark contrast to the image I try to portray on Instagram. Hashtag happy life. Hashtag beautiful family. Hashtag blessed."; "You're perpetually stoned, aren't you? Hashtag four twenty four seven."; "The Occam’s razor explanation is that he’s just hashtag-blessed with the kind of lustrous lashes that many people spend a lot of money (and rack up a lot of Sephora Beauty Insider points) trying to get."Internetinformalmetonymically