Dunham, 28, told Ryan Seacrest on the Golden Globes red carpet that she deleted her Twitter account, reported New York Post.
"People threaten my life and tell me what a cow I am," she said of the social media platform, adding that she could do without the "neocons" saying she should be under a pile of trash.
However, she tweeted just a few hours before stepping out onto the red carpet to promote the season premiere of 'Girls.'
The writer and actress had only praise for her childhood babysitter Zac Posen, who designed the scarlet gown she wore to the Golden Globes.