Contracted from -다고 하면서. Used when someone attempts to do something (often with poor results). Implies the action was done with a certain intention but the outcome was not as expected.

• •Often implies failure: "고친답시고 만지다가 망가뜨렸어" (Trying to fix it, he broke it)
• •Mild criticism: "도와준답시고 오히려 방해가 됐어" (Trying to help, he actually got in the way)