This here's a classic jump
That big things are popping on
So baby wipe me down

from Drake – Underdog Lyrics on Rap Genius

Drizzy is saying this is a classic and big things are gonna happen so the female needs to wipe him down so he’ll be fresh. It could also mean this is a classic in reference to the songs “Jump” by Kriss Kross, “Big Things Poppin'” by T.I. and “Wipe Me Down” by Foxx & Lil Boosie which are all classic records in their own rights

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