A vaugue term, often used indesciminately, to describe a thing or things that one would,usually for the sake of convenience, omit and sum up as "what-not"
"That bastard. Spends all his damn time messing with that ugly girlfriend of his.You know, just talking and what-not"
A term used to describe an attractive woman. Can also be used as a catcall when a woman one deems to be attractive walks by a group of males, strictly for the purpose of gauging agreement within the group.
That neighbor of yours is definitely a whatnot.