omg. these people are as dumb as Wheatley. This line wasn't poking fun at adopted children, nor was it poking fun at%uFEFF fat people (which they didn't bring up for some reason I woulda thought that fat people everywhere would be shocked at that line also *sarcasm*) this line is directly making fun of Wheatley and Wheatley alone. This is making fun of his inability to successfully mock the character in an intelligent way, by making him say something that a 3 year old would say to make fun of another.
You are not special. You are not a beautiful or unique snowflake. You're the same decaying organic matter as everything else.