When the pimp's in the crib, ma
(Drop it like it's hot, drop it like it's hot, drop it like it's hot)

from Snoop Dogg (Ft. Pharrell Williams) – Drop it Like it's Hot Lyrics on Rap Genius

Meaning

When “the pimp” (Snoop in this case) enters the room, all of the ladies are expected to drop their ass to the floor faster than you would drop something that’s on fire and burning your hands.

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