Top definition
When somebody else jacks your or others hashtags to promote there twitter page or product
Example of Hashjacking:
Omg check out this cool thing or a tweet full of hashtags
by zqtwho November 06, 2011
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Jul 1 Word of the Day
sending two texts in a row without a reply inbetween.
Rachel: whats up?
Tessa: not to much! hbu?
Tessa: dude, i'm so bored.
Rachel: stop double texting me.
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