There's gonna be a lot of slow singing and flower bringing
If my burglar alarm starts ringing

from The Notorious B.I.G. – Warning Lyrics on Rap Genius

Meaning

If you break into Biggie’s property and set off his ADT, he will be forced to make the first step in your funeral arrangements (i.e., kill you)

This is also a potential reference to the Allen & Allen (Allen Toussaint and Allen Orange) penned song “Over You” performed by Aaron Neville and released in 1960. The opening line: “There’ll be some slow walking, Gonna be some sad talking, Gonna be some flower bringing, there’ll be some sad singing, over you”

http://www.youtube.com/watch?v=_Ln1Q0gz6aQ

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