According to the Urban Dictionary:
slide
A)In Miami Fl usually means to be at attendence at a party or other event.
Thanks for that "urban" definition. I'm from NYC, so I'm actually very urban, I'm just insufficiently ghetto. I don't think Tracy Howard is ghetto either, so he must be bilingual. The problem with this dialect is that sliding has different definitions in standard English that make the statement confusing. For example,
slide |slīd|
verb
change gradually to a worse condition or lower level: the country faces the prospect of sliding from recession into slump.
So, Tracy was asking when Gray will end up "sliding" down to prep school from UM or reclassifying to 2015 from 2014.
I guess I would be more current with slang if I had grandkids, but it's very frustrating sometimes.