The phrase “Drop the Danish” refers to when someone offers you something they think will please you but they do not have the mental faculties to comprehend that the only pleasure was for them in giving it to you.
This can be refer to something as benign as unwanted conversation, or unwanted gift, It can be as cancerous as an inappropriate touch. The reference for the term is based on some one knowing you only eat bagels but they gave you a Danish.
This guy will always drop the Danish, he always talks to me about how much he loves skiing even though I always remind him that my wife was crippled in a skiing accident. He also keeps telling me skiing jokes and touching my shoulder as he laughs at his own jokes even though I shrug my shoulder away from him and scowl at him, this guy can’t stop dropping the Danish.