cashtagging 

Cashtagging is where you start Hashtag games on twitter with the sole purpose of making money.

Cashtagging is going to make me a fortune.

cashtagging by Billy from Philly June 19, 2018

Double Hashtagging 

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

Double Hashtagging by TheSoulOfgenius January 7, 2015

Hashtagging 

Hashtagging (v.) The act of having sex while smoking hash. Derived from "to tag" meaning, "To have sex with," and "hash" meaning "hash."

"We were bored & nothing was on TV, so Becky and I spent the evening #hashtagging

Hashtagging by JamesBeam October 17, 2010

hashtagging it up 

To excessively adorn tweets with the hash tag symbol "#" to spread annoyance and effeminacy throughout the internet.

Yeah Katherine was cool until she started hashtagging it up.

hashtagging it up by BigManinCommunityCollege January 12, 2012

Hashtagging 

Weaving in and out of traffic in an effort to get to your location in the quickest manner possible.

Hey kids, look at that guy hashtagging in that BMW. He's going to get in an accident if he keeps doing that.

Hashtagging by TooMuchWhitt February 14, 2017

Hashtagging 

The most efficient way for two women to pee in the same toilet. One woman sits on the toilet while the second woman sits on the first at a 90 degree angle, forming a hashtag or pound sign.

Also known as female sword fights.

Karen: I have to pee.
Lisa: Me too but there’s only one toilet available.

Karen and Lisa: Hashtagging it is! (as they high-five)

Hashtagging by Smooth Taint March 7, 2019