If you drool while you sleep, it’s a sign that your

avoid sleeping in front of others (e.g., in military barracks, shared dorms, sleepovers) due to fear of drooling or other involuntary habits like snoring or talking in sleep.

8. Literary & Linguistic Connections
   Language expressions related to drooling often imply:

Desire or anticipation (“drooling over a new car”)

Idleness or lack of intelligence in some derogatory phrases

Childishness or immaturity, especially in metaphoric use