when someone tries to "nail" one from opposite sex (or the same sex.. whatever) and fails. well, that`s a nailure
wasted guy is approaching a girl standing alone at a bar (by the sea, romantically). "hey there gorgeous.. wanna shag tonight/eat something/watch the sunset together?" "Err.. maybe some other time.. in another life, loser!" the girl responds.
Nailul is a great friend who will always have your back, he has mood swings though and some form of depression. He will randomly sing national anthems of other countries. He knows waaaaay to much german. Wants to have lunch with hitler. Is really soft. He knows pretty much every thing about wars and countries. Hes gay, he denies it but hes gay. When sad he will hide in the bathroom.