A laptop computer that is being used by a recumbent man that is so lazy that he refuses to sit up while using it. The computer is placed on the user's belly or chest.
Person 1: Steve's so lazy, he's been lying in bed the past 12 hours.
Person 2: Nah dude, I saw him earlier today on facebook.
Person 1: Yea, he's been on his bellytop all day.