the total opposite of a hard on. Hence soft off, with soft being the opposite of hard and off being the opposite of on. lol. A term coined by urs truly. Used to describe the condition of a dick when seeing something totally unatural and FUCKING DISGUSTING.
WOW EMILY'S ASS IS SOOO FUCKING WAK!!! it's like a big block of textureless shit. If i saw her naked, i wud definately get a soft off.