the hot topic of the day - referring to the twitter use of the '#' symbol to address a specific topic
e.g. 1: hey tweeps what's going on? what's the hashtag dejour?

e.g. 2: I will not tweet anything cynical about the hashtag dejour if you tell me which channel the royal wedding is NOT on
by Peter Greenwall April 29, 2011
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When anyone uses a hashtag (simply a way for people to search for tweets that have a common topic and to begin a conversation) on a website, text message, or anything that does not pertain to Twitter. This is quite annoying considering hashtagging only works on Twitter.
(In a text message)

Guy: Hey want to go see Paranormal Activity 3?
Girl: I can't, I have to work :( #IHateMyJob
Guy: That doesn't work on text messages, only Twitter.
Girl: But I do it on Facebook all the time! #FreakingOut
Guy: Oh my God you're an idiot.

She is a Hashtag Abuser
by BubbaDog October 29, 2011
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#when #someone #uses #so #many #hashtags #they #begin #to #lose #touch #with #reality
Hashtag abuser: Omg just ordered a large frappucino #yolo #beverage #drink #swag #ilikecoffee #rtifyoudoto #yayfordrinks
by xbox_bash August 3, 2014
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When you take the 'like' or 'as' out of a metaphor in rap.

As coined by Kanye West on Funkmaster Flex's Hot 97 radio show.

Named after Twitter hashtags.

Often used by Kanye himself, Drake and Nicki Minaj.

Kanye claims the style was spawned from his song "Barry Bonds".
Examples of hashtag rap:
"Here's another hit; Barry Bonds "
- Kanye West - "Barry Bonds (ft. Lil' Wayne)"

Two thumbs up; Ebert and Roeper
- Drake - "Over"
by angryhead November 30, 2010
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When someone thinks they're really clever because they make half their post or Tweet a hashtag. So they do it all the time.
Real life instances of "Hashtag's Disease":

I was home two hours late for curfew. Oh wait, #WHYDOIHAVEACURFEW

I AM IN BED SO EARLY AND IT FEELS SO NICE! #igothomebeforemyparentsdid #notabigdeal
by Screamin' Squirter September 21, 2011
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A person who abuses the use of hashtags, typically on social media, either without proper understanding of its meaning, or just purely spamming of hashtags.
Spiderman uses so many hastags in his instagram posts, he's such a hashtag abuser. #ootd #yolo #swag #hastag #abuse #random #sexy #spiderman #web #shooter #gwendied #sad #imissher #wooooooooooooooooooooo #taghash #thighgap #anorexia #comics #marvel #Disney #sucks #YAY
by KHORBS August 3, 2014
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A simple concept. When a person hashtags the same shit they just said in a sentence. Invented in the piedmont of North Carolina in 2014, this is sure to become a trend. #suretobecomeatrend
Jalen: This shit is awesome! #thishitisawesome
Jonah: Dude, stop double hashtagging. #stopdoublehashtagging
by TheSoulOfgenius January 8, 2015
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