Backslide: Definition- Hooking up / getting back together with an ex. Ohh yes, the good old backslide. 99% of people have been guilty of some sort of backsliding, that's why you should always implement the golden rule of never bitching too vigorously about a friend's ex, as you never know what will happen. Another tip to prevent backsliding: do not drink and slide, one should always remain sober around one's ex.
Back-Up Boy: Definition - Someone who is a bit comme ci, comme ça. They're nothing special but a good time filler until someone exciting comes along.
Butterfly Boy: Definition - Interesting, witty, clever people who genuinely give you butterflies. Someone you click with and would like to date.
Band-Aid Boy: Definition - A rebound boy (or girl), used as a healing device to get over a break-up. You never date Band-Aid Boys, you only meet up with them on nights out. Band-Aid Boys (and girls) must be super fun, and good dancers.