You mean like a spy, investigating?
Making it seem like I'm celebrating?
When actually I'm infiltrating Santa's operation

from Childish Gambino (Ft. Danny Pudi) – Christmas Infiltration Lyrics on Rap Genius

Because Donald Glover plays a Jehovah’s Witness in the show, Community, he can’t celebrate holidays.
In this case, the holiday that he can’t celebrate is christmas. Since he can’t celebrate, he’s going to pretend he’s trying to ruin it, while actually just celebrating so he doesn’t miss out.

To help improve the meaning of these lyrics, visit "Christmas Infiltration" by Childish Gambino (Ft. Danny Pudi) Lyrics and leave a comment on the lyrics box