When during the act of sex, one person is observed making a bizarre facial expression or expressions that make them appear to be mentally incapacitated, or at best, just looks silly.
Guy #1: So you hooked up with that girl last week? How is she in the sack?
Guy #2: Everything was good until she suddenly had this totally weird look on her face that stopped me cold/made me laugh
Guy #1: So she's got Retard O-Face?
Guy #2: Yep.
Squishy Face Retard is often referred to as a man who is in charge or is a "crew lead" at a railroad car offloading facility.
this mans "vagina" is usually chapped
A Squishy Faced Retard is someone that has a squishy face and is a retard, or incapable of doing some things. Can be pretty offensive if used at the wrong time.