Top definition
Someone who over hashtags their tweets on Twitter to gain more exposure.
most #underrated #britpop band, without question: #supergrass #fuckyou #thingsweneedtochange

"I have to unfollow Steve on Twitter. I am sick of his flashtaging. I can't even get through a message with only 120 characters."
by Hashtag Failer August 31, 2011
Get the mug
Get a flashtaging mug for your dog Manafort.