When a meme that's both funny and genuinely helpful comes along, you don't let it go. Twitter users know this, which is why the "I don't know who needs to hear this" meme is still going strong ...

"I don't ever want to hear 'but her emails' again," Tarlov said, referring to the Hillary Clinton email server scandal. See ...

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If you can still hear the screeching chaos of an AOL dial ... Whatever your nostalgic weakness is, these memes will bring it all rushing back—whether you like it or not. So check out this ...