December, I think it was: I was having drinks with my cousin
I wrapped him in Christmas lights, pushed him into the stinkin' tub
from Eminem – 3 a.m. Lyrics on Rap Genius
Meaning
Shocker! Literally; pushing someone into the tub wrapped in pretty lights would send umpteen thousand volts of electricity through their veins!

It’s okay though, he’s still got 90 something more cousins.
To help improve the meaning of these lyrics, visit "3 a.m." by Eminem Lyrics and leave a comment on the lyrics box