blanket janker 

of a person who steals all the blanks in bed.

Yo adrian you cant stay the night anymore, yous a blanket janker.

blanket janker by katiekat10 October 9, 2008

Blanketwanker 

An adult child still living at home usually in the basement, usually jobless.

Poor old Charles, as if he does not have enough to worry about, his only child is a 28 year old blanketwanker who now has a pregnant girlfriend.

Blanketwanker by bones1971 August 5, 2009