A strong and undeniable feeling of interest for another person that could quite possibly make you do irresponsible and retarded things.
See also whipped.
Friend: Let me get this right, she said she wanted a cupcake from Botswana...so you went and GOT ONE??
Guy: I mean she asked. It was the least I could do.
Friend: Man you got a SERIOUS JONES for this chick.
Basketball jones, I got a basketball jones, I got a basketball jones, oh baby, oooOOoooo.
JFC, I'm old.
I first heard this in Ten Things I Hate About You, which is like really old now.
Has this word come back?