A way to have sex.
Unlike vaginal or anal where you penetrate the vagina or anus respectively, or oral where she sucks you, or tit where you fuck her tits like its ass or poke her nipples; Optical sex it where you pentrate her eye.
You push your hardened dick into her eye and proceed to do her. Her eye must be wide open the whole time. The act is finished when her eye is covered in cum.
John: What type of sex did you give her Jim?
Jim: Optical Sex, the one where I fuck her eye!
Someone who jumps from one relationship immediately into another one.
Serial monogamists can not stand to be alone and often suffer from vast commitment and insecurity issues.
Because they jump into relationships immediately after the previous one has ended, serial monogamists typically don't take the time to reflect on their behavior or why their previous relationships failed; thus, they end up making the same relationship mistakes over and over again.
Person 1: Damn, Dustin already has a new girlfriend?! It's only been two weeks since he broke up with his fiance! I think he's a sociopath.
Someone or something that bites your ankles.
To a postman, an ankle biter is often known as a dog.
To an adult, an ankle biter may be a toddler.
To hikers, an ankle biter is sometimes a tick.
And so on.
When a man will search for hours to find something that is laying out in the open on a table. Items are often easily found by a women.
Man: "I have been searching for hours for keys."
Woman: "You mean the ones sitting there on the coffee table?"
Man: "Where?"
Woman: "Right there in the middle of that table."
Man: "oh, must have been Male Pattern Blindness"