Another Monday Morning

Jump in that thing and then travel back in time
Just quick enough sit back and bust a rhyme
Don't playa hate because I'm doin no time
You don't know me homey I aint done no crime

If you be laughin at me while I done spit
I'll stop you laughin cause my rhyme is legit
Those hobos creep me out and I had to sh*t
So future or the past which one will be it?