You could kiss or make out with the same sex but that's all about it. You could never go out with them because you don't feel enough emotions for them or do anything about them such as sexual intercourse.
Wallsexual came from the word "Wall" which means to subdivide and "sexual" means occurring between or involving the sexes
"Wallsexual": It's really hard to make an example about it. It's basically just the definition and it just what it means.
A male that is completly obsessed with the sport of basketball. Usually has facebook status, or personal messages involving basketball. Will dedicate an entire summer to basketball and will choose basketball over anything or anyone, such as vacations and girlfriends.
Boy 1: "Dude I found these chicks that want to have sex with us!"
Boy 2: "OMFG when!?"
Boy 1: "Tonight!"
Boy 2: "Oh, I wish i could, but I really should practice my freethrows.."
Boy 1: "wow dude, your such a ballsexual"
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).