1. hashtag - Noun
2. hashtag - Verb
(Internet) A metadata tag, signaled by a preceding hash sign (#), used to label content. [from 2007]
(Internet, informal) The hash sign itself, when used as part of a hashtag.
hashtag (third-person singular simple present hashtags, present participle hashtagging, simple past and past participle hashtagged)
(transitive, Internet) To label (a message) with a hashtag.
And not all fans were in favor of this kind of activism; Sahia chose to abstain from the hashtag spam because she says she felt it turned the hashtags into trending topics that shifted attention away from the “real issue,” she says. Source: Internet
Angela took to Instagram on September 19 with photos from her wedding reception and captioned the slideshow "no stress" with the hashtag "Teamangelamichael." Source: Internet
A network of right-wing operatives and activists — and the president himself — spread disinformation about Joe Biden with one simple hashtag. Source: Internet
Beginning on March 14, 2016, the standard Fox logo with hashtag is now used on all programming, with the station bug flashed for a few moments at the start of a program or coming out of commercial, as is traditionally done with ABC, CBS and NBC stations. Source: Internet
According to a press release on the campaign, between late February and early July 2018, for each photo posted with the hashtag, Aerie donated $1 to the National Eating Disorders Association, which is nothing short of inspiring. Source: Internet
As of writing, the hashtag is on top Philippines Trends list of Twitter with more than 11,900 tweets under its belt. Source: Internet