A term girl's often use when describing guys that do things that seem nice or sweet in an innocent way. It's made to sound like a " nice, attractive funny" cute, but it's really a "cute like your boyfriend's retarded 8 year old brother". Guys defined as "cute" are supposed to be "prude, innocent, and naive in the ways of anything sexual.
Aww you're so cute! You remind me of my boyfriend's 8 year old brother, who is also retarded!