The announcer said brightly, “She is completely effaced right now, and she just lost her mucus plug.”
Plummer found the film so saccharine that he even developed a nickname for it: “The Sound of mucus.”
It would be similar to smoking, only less…and you might get a chronic cough, or raise a little [mucus].
1660s (replacing Middle English mucilage), from Latin mucus "slime, mold, mucus of the nose, snot," from PIE root *meug- "slippery, slimy," with derivatives referring to wet or slimy substances or conditions (cf. Latin emungere "to sneeze out, blow one's nose," mucere "be moldy or musty," Greek myssesthai "to blow the nose," myxa "mucus," mykes "fungus," Sanskrit muncati "he releases"). Old English had horh, which may be imitative.
mucus mu·cus (myōō'kəs)
The viscous slippery substance that consists chiefly of mucin, water, cells, and inorganic salts and that is secreted as a protective lubricant coating by the cells and glands of the mucous membranes.